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SCHEME OF STUDIESFOR SSC (CLASSES IX–X)

COMPULSORY SUBJECTS FOR ALL STUDENTS (450 marks)

1. English (Compulsory) 2 papers 150 marks

2. Urdu (Compulsory) 2 papers 150 marks

3. Islamic Education/Ethics (for Non-Muslims) 1 paper 75 marks

4. Pakistan Studies 1 paper 75 marks

OPTIONAL GROUPS (600 marks)

The students will choose one of the following (A), (B) and (C) Groups carrying 600 marks:

(A) Science Group:

Physics, Chemistry, Mathematics, Biology/Computer Science/Technical Subject

(B) Humanities Group:

General Science, General Mathematics, Two Social Science Subjects/One Social Science Subject and One Technical Subject

(C) Technical Group:

General Science, General Mathematics, Two Technical Subjects

LIST OF SOCIAL SCIENCE SUBJECTS1. Computer Science 9. Elements of Home Economics2. Islamic Studies 10. Food and Nutrition3. Islamic History 11. English Literature4. Economics 12. Arabic5. Education 13. Art and Model Drawing6. Civics 14. Geography7. Clothing & Textile 15. Commercial Geography8. Health & Physical Education

LIST OF TECHNICAL SUBJECTS1. Electrical Wiring 2. Computer Hardware(Orientation)3. Wood Working & Furniture Making 4. Food Processing and Preservation5. Welding (ARC & GAS) 6. Motor Winding7. Dress Making & Fashion Designing

Note: The question paper will comprise three sections:- Section-A 20% MCQs. It will be compulsory and collected after prescribed time.- Section-B 50% short answers questions. - Section-C 30% long/essay type questions.

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Federal Board SSC-I Examination English Model Question Paper

Roll No: Answer Sheet No: _____________

Signature of Candidate: ____________

Signature of Invigilator: ____________

SECTION – A Time allowed: 20 minutes Marks: 15

Note: Section-A is compulsory and comprises pages 1-3. All parts of this section are to be answered on the question paper itself. It should be completed in the first 20 minutes and handed over to the Centre Superintendent. Deleting/overwriting is not allowed. Do not use lead pencil.

Q.1 Insert the correct option i.e. A / B / C / D in the empty box opposite each part. Each part carries one mark.

i. While running his own comedy website, the author developed in himself:

A. Communication Skills B. Life SkillsC. Organizational Skills D. Speaking Skills

ii. Sultan Ahmed Mosque is popularly known as:

A. Hagia Sophia B. Ottoman MosqueC. Faisal Mosque D. Blue Mosque

iii. The Nurse wanted Hira’s sister to visit the hospital and talk to her for:

A. giving her an emotional strengthB. hoping that her sister’s voice might activate her nearly dead neurons.C. hoping that her sister’s voice might deactivate her nearly dead neurons.D. making her sister realize that she might die soon.

iv. Helen Keller says, “If I were the president of a university, I would establish a compulsory course in”:

A. How to use your Mind B. How to handle a SituationC. How to use your Eyes D. How to admire Nature

v. Which of the following is not a phrase?

A. Across the Road B. Stopping by the woods C. Keeping one self abreast of D. What a beautiful painting

2

of 3 Turn Over

DO NOT WRITE ANYTHING HERE

vi. You will hurt yourself. The under lined word is:

A. Personal Pronoun B. Possessive Pronoun C. Reflexive Pronoun D. Emphatic Pronoun

vii. The galloping horse scared the child. The underlined word is:

A. Verb B. Noun C. Pronoun D. Preposition

viii. She takes pride ____ her work.

A. in B. forC. of D. on

ix. The boy was honest. The underlined word is:

A. Action Verb B. Linking Verb C. Helping Verb D. None of these

x. “I completed my homework, put on my jacket and left for the market.” It is a:

A. Simple sentence B. Compound sentenceC. Complex sentence D. Compound Complex sentence

xi. I saw a herd of sheep. The underlined word is:

A. Uncountable B. Abstract NounC. Collective Noun D. Common Noun

xii. The branches were covered with blanket of snow. In this sentence we find an example of:

A. Imagery B. PersonificationC. Simple D. Metaphor

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of 3 Turn Over xiii. She always remained unswerving. The similar meaning of underlined word is:

A. Firm & resolute B. patientC. Ready to face D. Prepared for the worst

xiv. The opposite meaning of infuriated is:

A. Very pleased B. HelpedC. Annoying D. Extremely angry

xv. Choose the correct spellings:

A. Flamboyant B. FlameboyantC. Flameboynt D. Flambyant

_______________

For Examiner’s use only

Q No.1: Total Marks:

Marks Obtained:

4

15

of 3

Federal Board SSC-I Examination English Model Question Paper

Time allowed: 2.40 hours Total Marks: 60

Note: Sections ‘B’ and ‘C’ comprise pages 1-2 and questions therein are to be answered on the separately provided answer book. Answer only eleven parts from section ‘B’ and attempt any two questions from section ‘C’. Use supplementary answer sheet i.e. sheet B if required. Write your answers neatly and legibly.

SECTION – B (Marks: 39)

Q.2 Answer any six of the following parts in about 30 to 40 words. Each part carries equal marks. i. State some salient features of Hazrat Asma (RA)’s personality.ii. What happens when Media is left unchecked?iii. Are we working according to the expectations of the great leader, Quaid-e-Azam?iv. Where is the Blue Mosque situated and for what purpose does a heavy iron chain

hang there?v. What is an ICU in a hospital and what is its purpose?vi. Noise pollution is a byproduct of technology. Elaborate.vii. In what ways is drug trafficking affecting our youth?viii. How would Helen Keller like to spend? Three days of her imaginative sight?

Q.3 a. Paraphrase any ONE of the following stanzas:

I wandered lonely like a cloudThat floats on high o’er vales and hills,When all at once I saw a crowd,A host of golden daffodils;Beside the lake, beneath the trees,Fluttering and dancing in the breeze.

ORMy little horse must think it queerTo stop without a farmhouse nearBetween the woods and frozen lakeThe darkest evening of the year.

b. Read the following stanza carefully and answer the questions given at the end: The woods are lovely, dark and deep,But I have promises to keep,And miles to go before I sleepAnd miles to go before I sleep.i. Why is the poet captivated by the woods?

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ii. What does the repetition of idea convey in the last two lines?iii. Why does the poet decide to depart from the scene?

Page 1 of 2 Turn Over Q.4 a. Change the voice of any FOUR of the following:

i. The teacher praised the student for his success.ii. Plants are watered by the gardener.iii. Were television sets being imported by them from China?iv. Who has stolen their books?v. I shall be ringing the bell.vi. Switch on the light.vii. She learns her lessons every day.

b. Provide correct form of verb of any FIVE of the following sentences: i. She (work) well yesterday.ii. Shazia (sing) melodious songs since morning.iii. It is (rain) outside heavily.iv. Birds of a feather (flock) together.v. If you work hard, you (pass)vi. sweet (is) the uses of adversity.vii. God (help) those who help themselves.viii. lazy bluffer (not succeed) in life.

c. Punctuate the paragraph: do not be overwhelmed by the enormity of the task he said in a speech at lahore.

SECTION – C(Marks: 21)

Q.5 Write a letter to your friend thanking her for her hospitality during your stay with her. (8)OR

Write a letter to your younger brother advising him about the adverse effects of keeping Bad-Company.Note: Choice may or may not be from the same genre.

Q.6 Write a paragraph of about 60-70 words on Fashion. (5)

Q.7 Translate any EIGHT of the following into ENGLISH: (8)

OR

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Write a dialogue between two friends on the significance of “Discipline in Life” / write a dialogue between a teacher & a student who often comes to school late.

_______________

Page 2 of 2

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Federal Board SSC-I Examination Mathematics Model Question Paper

Roll No: Answer Sheet No: _____________ Signature of Candidate: ____________ Signature of Invigilator: ____________


Note: Section-A is compulsory and comprise pages 1-2. All parts of this section are to be answered on the question paper itself. It should be completed in the first 20 minutes and handed over to the Centre Superintendent. Deleting/overwriting is not allowed. Do not use lead pencil.

Q.1 Insert the correct option i.e. A / B / C / D in the empty box provided opposite each part. Each part carries one mark.

i. If = 0, then is equal to:

A. 6 B.

C. D. 9

ii. The value of is:

A. B.

C. D. 1

iii. The logarithm of unity to any base is: A. 0 B. 1 C. 10 D. e

iv. The degree of polynomial is:

A. 1 B. 2 C. 3 D. 4

v. Find P so that y2 + 4y + P is a complete square: A. 8 B. –8 C. 4 D. 16

vi. H.C.F of x2–y2 and x3–y3 is: A. x – y B. x + yC. x2 + xy + y2 D. x2 – xy + y2

vii. Which one is a solution of ?

A. {1, 5} B. {1, –5}C. {–1, 5} D. {–1, –5}

viii. Point (5, –2) lies in quadrant:

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A. I B. IIC. III D. IV

ix. Mid-point of the points (4, 4) and (2, 2) is: A. (1, 1) B. (2, 2)C. (3, 3) D. (–2, –2)

Page 1 of 2 Turn Over


x. If ∆ ABC ∆ DEF, mLA = 30o, mLE = 60o, then mLF is:

A. 30o B. 60o C. 90o D. 75o

xi. Which of the following set of length cannot be the length of sides of a triangle?

A. 3, 4, 5 B. 5, 4, 6 C. 5, 4, 7 D. 2, 4, 7

xii. The length of the side of a square is 5m. The length of its diagonal is:

A. 10 cm B. 20 cm C. D.

xiii. ∆ ABC and ∆ DEF have equal bases. Altitude of ∆ AB is twice the altitude of ∆ DEF.

Area of ∆ DEF is _______ the area of ∆ ABC.

A. equal to B. twiceC. greater than D. half

xiv. The median of a triangle cut each other in the ratio:

A. 4 : 1 B. 2 : 1C. 3 : 1 D. 1 : 1

xv. The bisectors of the angles of a triangle are:

A. parallel B. concurrentC. perpendicular D. collinear

_______________



9

15

Marks Obtained:

Page 2 of 2

Federal Board SSC-I Examination Mathematics Model Question Paper


Note: Sections ‘B’ and ‘C’ comprise pages 1-2 and questions therein are to be answered on the separately provided answer book. Answer all the questions from section ‘B’ and attempt any four questions from section ‘C’. Use supplementary answer sheet i.e., sheet B if required. Write your answers neatly and legibly.

SECTION-B (Marks: 36)

Q.2 Attempt any 12 parts of the following. Each part has equal marks. (Marks 12x3 = 36)

i. If , , find AB.

ii. Solve by using Cramer’s rule.

iii. Show that

iv. Solve the equation for real x and y.

v. Evaluate log 512 to the base

vi. Use log table to find the value of

vii. Reduce the expression to the lowest form

viii. If and then find the value of

ix. If , find and

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x. Factorize

xi. If is a factor of , then find the value(s) of K.xii. Find the H.C.F. of following by division method:

xiii. Simplify

xiv. Find the square root of the expression

xv. Solve and check

xvi. Solve , where xvii. Draw the graph for following relation:

xviii. Solve the equation graphically ,

Page 1 of 2 Turn Over SECTION – C

(Marks: 24)

Note: Attempt any three questions. Each question carries equal marks. (Marks 3x8=24)

Q.3 Show that the diagonals of the parallelogram having vertices A(1, 2), B(4, 2), C(–1, –3) and D(–4, –3) bisect each other.

Q.4 Prove that the sum of the lengths of any two sides of a triangle is greater than length of third side.

Q.5 Prove that the square of one side of a triangle is equal to the sum of the squares of the other two sides then the triangle is a right angled triangle.

Q.6 Prove that the line segment, joining the mid points of two sides of a triangle, is parallel to the third side and is equal to one half of its length.

Q.7 Construct , , and . Draw perpendicular bisectors of its sides and verify that they are concurrent.

_______________

11

Federal Board SSC-I Examination General Mathematics Model Question Paper




SECTION – A

Time allowed: 20 minutes Marks: 15

Note: Section-A is compulsory and comprise pages 1-3. All parts of this section are to be answered on the question paper itself. It should be completed in the first 20 minutes and handed over to the Centre Superintendent. Deleting/overwriting is not allowed. Do not use lead pencil.

Q.1 Insert the correct option i.e. A / B / C / D in the empty box provided opposite each part. Each part carries one mark.

i. 20% of 600 is:

A. 12 B. 120C. 20 D. 200

ii. The share of a widow in inherited property is:

A. B.

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C. D.

iii. Loss is there when:

A. S.P > C.P B. S.P = C.P C. S.P < C.P D. S.P = M.P

iv. Year starting from 1st July is called:

A. Financial year B. New year C. Lunar year D. Solar year

v. The periodic installment to be paid by the insured is called:

A. bonus B. maturity C. premium D. insurer



vi. The amount payable at the time of agreement for leasing a car is called:

A. Down payment B. InstallmentC. Markup D. Processing fee

vii. A machine installed by the bank to dispense cash to customer is called an:

A. bank draft B. scannerC. computer D. ATM

viii. The tax in addition to the price of the article is called:

A. tax B. income taxC. excise duty D. sales tax

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ix. =

A. B.

C. D.

x. In , 10 is called:

A. radical B. base C. radicand D. exponent

xi. log10100 =

A. 0 B. 1C. 2 D. 10

xii. A.M between and is:

A. B.

C. D.

Page 2 of 3 Turn Over xiii. If A B then A ∩ B =

A. B B. AC. ϕ D. U

xiv. The coordinates of origin are:

A. (1, 0) B. (0, 1)C. (1, 1) D. (0, 0)

xv. For the data 6, 2, 4, 3, 4, 5, 4, 5, the value of mode is:

A. 3 B. 4C. 5 D. 2

_______________



Marks Obtained:

14

15

U

of 3

Federal Board SSC-I Examination General Mathematics Model Question Paper


Note: Sections ‘B’ and ‘C’ comprise pages 1-2 and questions therein are to be answered on the separately provided answer book. Attempt twelve parts from section ‘B’ and attempt any four questions from section ‘C’. Use supplementary answer sheet i.e., sheet B if required. Write your answers neatly and legibly.

SECTION-B (Marks: 36)

Q.2 Attempt any 12 parts of the following. Each part has equal marks. (Marks 12x3 = 36)

i. If 82% of the houses have a television, what percentage do not have?ii. If a : b = 2 : 3, find the ratio 6a : 2b. iii. Calculate Ushr on a rice crop produced by natural resources amounting to

Rs.6,00,000/-.

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iv. A book is sold for Rs.650/- at a profit of 30%. Find the cost price. v. Find the market price when S.P = Rs.858, and discount = 12%.vi. If the simple profit on Rs.640/- for 12 years is Rs.384. Find the rate of profit.

vii. Simplify

viii. Simplify

ix. Solve

x. Find A.M between 4 and 8.xi. If A = {–2, 1, 4} then write two binary relations in A also. Write their domain and

ranges.xii. Draw the graph of y = 4x + 1xiii. Find geometric mean of 2, 4 and 8. xiv. A computer price is Rs.34,000/- inclusive of 16% sales tax. What is the original

price of the computer? xv. What sum would borrow in Rs.174/- as markup at 5% in 4 years?xvi. Find the 7th term of a G.P 2, 8, 32, . . . . . .xvii. If A = {1, 4, 7, 8}, B = {4, 6, 8, 9} and C = {3, 4, 5, 7} then find (A ∩ B) ∩ C.

xviii. Simplify

Page 1 of 2 Turn Over SECTION – C

(Marks: 24)

Note: Attempt any FOUR questions. Each question carries equal marks. (Marks 4x6=24)

Q.3 A factory makes 560 fans in 7 days with the help of 20 machines. How many fans can be made in 12 days with the help of 18 machines?

Q.4 The price of car is Rs.12,50,000/- whereas the rate for premium is Rs.4.50% for a tenure of 5 years. Calculate the total amount paid as insurance.

Q.5 Rs.3720/- are to be divided in three shares in such a way that 1 st share would be double, triple to the 2nd and 5 times to the 3rd are equal.

Q.6 Evaluate by using the logarithm

Q.7 If U = {7, 8, 9, 10, 11, 12, 13, 14}, A = {7, 10, 13, 14} and B = {7, 8, 11, 12}, then verify (A ∩ B)c = Ac U Bc.

Q.8 Find the standard deviation for the values 1, 2, 3, 4, 6, 8, 11. Also find the variance in this case.

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_______________

Page 2 of 2

Federal Board SSC-I Examination Physics Model Question Paper






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i.

A. 10-2 B. 10-3 C. 103 D. 10-6

ii. The graph shows that an object is moving with:

A. uniform speed B. uniform velocityC. uniform deceleration D. uniform acceleration

iii. 72 km/h = ______m.s-1

A. 720 B. 72 C. 36 D. 20



iv. When a bus takes a sharp turn, passengers fall in the outward direction because of:

A. gravity B. weight

O t(sec)

v(ms-1)

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C. inertia D. pressure

v. A body of mass 8kg is acted upon by a force of 20N, what would be its acceleration?

A. 2 mS-2 B. 2.5 mS-2 C. 4 mS-2 D. Zero

vi. Which of the following is the unit of momentum?

A. Nm B. kgmS-2 C. NS D. NS-1

vii. A couple is formed by:

A. Tow forces perpendicular to each other.B. Two like parallel forces.C. Two equal and opposite forces in the same line.D. Two equal and opposite forces not in the same line.

viii. A force of 10N makes an angle of 30o with the horizontal. What would be its vertical component?

A. 4N B. 5NC. 7N D. 8.7N

ix. The orbital speed of a low orbit satellite is:

A. zero B. 8 ms-1

C. 800 ms-1 D. 8 km s-1

Page 2 of 3 Turn Over x. 1 horse power = _______ watts

A. 1000 B. 7460 C. 746 D. 106

xi. The S.I. units of latent heat of fusion is:

A. Joule B. Joule kg-1

C. J. kg-1. k-1 D. J-1. kg-1. k-1

xii. Normal human body temperature is:

A. 15oC B. 37oCC. 37oF D. 98.6oC

_______________


Q No.1: Total Marks: 19

12

Marks Obtained:

Page 3 of 3

Federal Board SSC-I Examination Physics Model Question Paper


Note: Sections ‘B’ and ‘C’ comprise pages 1-2 and questions therein are to be answered on the separately provided answer book. Answer only eleven parts from section ‘B’ and attempt any two questions from section ‘C’. Use supplementary answer sheet i.e. sheet B if required. Write your answers neatly and legibly.

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Q.2 Attempt any eleven parts from the following. The answer of each part should not exceed 3 to 4 lines.

(i) Find the base quantities involved in each of the following derived quantities: (a) Force (b) Work

(ii) Describe the direction of acceleration of a moving body when its velocity is:(a) increasing (b) decreasing

(iii) Differentiate between scalars and vectors. (iv) A bullet of mass 20g is fired from a gun with a muzzle velocity 100

ms-1. Find the recoil of the gun if its mass is 5 kg. (v) Why the outer edge of the curved road is elevated? (vi) Why is it easy to tight a nut using a spanner of long arm than a

spanner of short arm?(vii) Why is the height of vehicles kept as low as possible?(viii) Describe briefly what do you know about GPS?(ix) Why does the value of “g” vary from place to place? (x) A force of 200 N acts on a body of mass 20 kg. The force accelerates

the body from rest until it attains a velocity of 50 mS-1. Through what distance the force acts?

(xi) How can geothermal energy be used for meeting energy requirements of a mankind?

Page 1 of 2 Turn Over (xii) Describe briefly the operation of a vacuum cleaner. (xiii) Why does a heavy ship float over water but a small needle sinks? (xiv) Why do wet clothes dry up more quickly in summer than in winter? (xv) Why are gaps left in railway tracks?


Note: Attempt any two questions. (2 10=20)

Q.3 a. State Newton’s law of gravitation. Also give its mathematical details. Calculate the mass of the Earth. (06)

b. Prove that S = vit + at2 (04)

Q.4 (a) State and explain Archimedes Principle. (06)

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(b) Find the magnitude and direction of a force, if its x-component is 12 N and y-component is 5 N. (04)

Q.5 (a) What is meant by conduction of heat? Discuss the factors upon which rate of flow of heat depends. Define thermal conductivity. (06)

(b) Find the volume of a brass cube at 100oC whose side is 10cm at 0oC, (Coefficient of linear thermal expansion of brass = 1.9 x 10-5 K-1) (04)

_______________

Page 2 of 2

Federal Board SSC Examination Chemistry Model Question Paper





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i. Which one of the following combinations of particles best represents Mg+2?

A. 14 protons, 10 electrons & 10 neutronsB. 12 protons, 10 electrons & 14 neutrons C. 14 protons, 10 electrons & 12 neutrons D. 10 protons, 10 neutrons & 12 electrons

ii. Which of the following is not true about the formation of Na2S?

A. Each sodium atom loses one electronB. sodium forms cation.C. sulphur forms anion D. Each sulphur atom gains one electron

iii. There is a structure of carbon dioxide molecule:O=C=O

How many unshared electron pairs are present in this molecule?

A. 2 B. 4 C. 8 D. 3

iv. An element belongs to VI A group and third period. Its valence shell electronic configuration will be:

A. ns2, np5 B. 2s2, 2p6 C. 3s2, 3p6 D. 3S2, 3p4



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v. The table below provides some information about phosgene and ethanol molecule:

Name Formula BPhosgene COCl2 48Ethanol C2H5OH 26

What will be the heading of column B in the table?

A. The number of covalent bonds in the moleculeB. The relative molecular masses C. The number of protons in the moleculeD. The number of bonding electrons

vi. The atomic number of carbon is 6. What information does this give about carbon atom?

A. It is a group VI element B. Carbon is six times as heavier as one atom of hydrogen C. Its atom has four electrons in the valence shell D. It has C4 molecule

vii. Water has a melting point of 0oC and a boiling point of 100oC. What will be its physical state of water at 130oC?

A. Gas B. Liquid C. Solid D. Cannot be predicted

viii. One mole of hydrogen gas is 2.016g.What will be the mass of 2.5 moles of Hydrogen gas?

A. 5g B. 5.04gC. 1.008g D. 10.08g

ix. The oxides are the binary compounds of oxygen. KO2 is an example of:

A. Normal oxide B. Per oxideC. Sub oxide D. Super oxide

Page 2 of 3 Turn Over x. A karat system is used to express the purity of gold. Pure gold is 24 karat.

Coinage Gold is 22 karat. What is percentage of gold in coinage gold? A. 90 B. 92 C. 94 D. 96

xi. During the electrolysis of brine, ions oxidized and reduced on electrodes. During this process which ion will oxidize first?

A. Chloride ions B. Hydroxide ionsC. Sodium ion D. Hydrogen ion

xii. The oxidation state of Mn in KMnO4 is:

A. 2 B. 3C. 5 D. 7

24

_______________



Marks Obtained:

Page 3 of 3

Federal Board SSC Examination Chemistry Model Question Paper


Note: Sections ‘B’ and ‘C’ comprise pages 1-2 and questions therein are to be answered on the

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separately provided answer book. Answer only eleven parts from section ‘B’ and attempt any two questions from section ‘C’. Use supplementary answer sheet i.e. sheet B if required. Write your answers neatly and legibly.


Q.2 Attempt any eleven parts from the following. The answer of each part should not exceed 3 to 4 lines.

(xvi) a) Differentiate between molecular and empirical formula. Give one example of each.b) A compound has empirical formula CH2O and its molecular mass is 180. Find its molecular formula.

(xvii) The table shows the nuclei of five different atoms. Name of atom Number of protons Number of neutrons

A 5 6B 6 6C 6 7D 7 7E 8 8

a. Which atom has the highest mass number? b. Which two atoms are isotopes?c. Which atom has least number of electrons?d. Which atom will have electronic configuration 1s22s23p3.e. Which of the atom contains the most number of electrons?f. What is position atom D in the periodic table?

(xviii) What is shielding effect? Which atom has greater shielding effect, Be or Mg? (xix) State and name law which explain the effect of pressure change on the volume of

a gas and also write its mathematical form. (xx) A solid substance may consist of atoms, ions or molecules. Define the following:

(a) Crystalline solid(b) Amorphous solid

(xxi) Differentiate between a saturated solution and an unsaturated solution. (xxii) How are halides formed? Give one example. (xxiii) Define electroplating. Write the conditions necessary for electroplating.

Page 1 of 2 Turn Over (xxiv) What is a reducing agent? Give two examples of reducing agents.(xxv) Define corrosion. List names of methods for prevention of corrosion.(xxvi) Draw the electron dot and cross structures for:

(a) ammonia (b) BF3

(c) NaCl(xxvii) Biological molecules such as proteins, DNA etc possess hydrogen bonding in

structures. Define hydrogen bonding and show hydrogen bonding among HF molecules.

(xxviii)The electronic configuration of some elements are given below: Elements Electronic Configuration

W 1s22s1

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X 1s22s22p63s23p5

Y 1s22s22p6

Z 1s22s22p2

Select pair of atoms likely to form:(a) Ionic bond (b) covalent bond(c) Give chemical formula of ionic compound formed in (a)

(xxix) Solid sodium chloride does not conduct electricity but its molten state conducts electricity readily. Why?

(xxx) Methyl alcohol is called wood spirit. Its molecular formula is CH3OH. Calculate the number of moles that would contain 2.5 1021 molecules of this compound.


Note: Attempt any two questions. (2 10=20)

Q.3 Write notes on any two of the following: (5+5)a. Dry Cell b. Down Cellc. Colloids

Q.4 (a) Write down the differences between electropositive and electronegative character of elements with examples. (5)

(b) Why is more reactive than Na? (5)

Q.5 Covalent compounds exist in the form of discrete molecules. (a) Define covalent bond. (1)(b) Describe various types of covalent bonds with suitable examples. (6)(c) Explain the formation of covalent bond between H-atom and Cl-atom why

H-Cl is Polar? (1+2)_______________

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syllabus - welcome to fbise for clas… · web viewphysics, chemistry, mathematics,...

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