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FIITJEE Samacheer Talent Recognition Drive CLASS - 10 (10 th going to 11 th ) Time: 3 Hours Maximum Marks: 300 IQ, MATHS, PHYSICS & CHEMISTRY 1. Caution: Question Paper CODE as given above MUST be correctly marked in the answer OMR sheet before attempting the paper. Wrong CODE or no CODE will give wrong results. 2. Answers have to be marked on the OMR sheet. 3. The Question Paper contains blank spaces for your rough work. No additional sheets will be provided for rough work. 4. Blank papers, clip boards, log tables, slide rule, calculator, cellular phones, pagers and electronic devices, in any form, are not allowed 5. Write your Name, Reg. No. and Test Centre in the space provided at the bottom of this sheet. 6. You are advised to devote around 1 Hour on each Section as there will be minimum cutoff marks in each Section for qualifying. 7. The question paper consists of 4 Sections: Section - I……….IQ (30 questions) Section-II……….Mathematics (30 questions) Section -III……….Physics (20 questions) Section -IV………Chemistry (20 questions). 8. Each question carries +3 marks for correct answer and -1 mark for wrong answer. Name of the Candidate : Registration Number : Date of Examination : Centre :

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  • FIITJEE

    Samacheer Talent Recognition Drive CLASS - 10

    (10th going to 11 th)

    Time: 3 Hours Maximum Marks: 300

    IQ, MATHS, PHYSICS & CHEMISTRY

    1. Caution: Question Paper CODE as given above MUST be correctly marked in the answer OMR sheet before attempting the paper. Wrong CODE or no CODE will give wrong results.

    2. Answers have to be marked on the OMR sheet.

    3. The Question Paper contains blank spaces for you r rough work. No additional sheets will be provided for rough work.

    4. Blank papers, clip boards, log tables, slide rul e, calculator, cellular phones, pagers and electron ic devices, in any form, are not allowed

    5. Write your Name, Reg. No. and Test Centre in the space provided at the bottom of this sheet.

    6. You are advised to devote around 1 Hour on each Section as there will be minimum cutoff marks in each Section for qualifying.

    7. The question paper consists of 4 Sections: Secti on - I……….IQ (30 questions) Section-II……….Mathemati cs (30 questions) Section -III……….Physics (20 questions) Section -IV… ……Chemistry (20 questions).

    8. Each question carries +3 marks for correct answe r and -1 mark for wrong answer.

    Name of the Candidate :

    Registration Number :

    Date of Examination : Centre :

  • STRD-2014 -CLASS - 10 -P 2 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    IQ IQ IQ IQ Section Section Section Section –––– I I I I

    Directions (Q.No. 1 – 5) Complete the given series. 1. 4, 9, 19, 34, 54, ……… (A) 79 (B) 74 (C) 89 (D) 83 2. 1, 9, 25, 49, …………. (A) 64 (B) 56 (C) 71 (D) 81 3. 0, 3, 8, 15, ………., 35 (A) 24 (B) 25 (C) 26 (D) 20 4. 1, 8, 27, 64, ……, 216 (A) 127 (B) 125 (C) 124 (D) 128 5. 1, 3, 6, 10, 15, ………, 28, 36 (A) 24 (B) 22 (C) 64 (D) 21 Directions (Q.No.6 to 9): These questions are based on the following Venn Diagram and answer the questions given below. The rectangle represents artists, the circle represents players and the triangle represents doctors.

    6. How many players are neither artists nor doctors? (A) 20 (B) 10 (C) 25 (D) 45 7. How many doctors are both players and artists? (A) 6 (B) 4 (C) 10 (D) 20

    Space for rough work

  • STRD-2014 -CLASS - 10 -P 3 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    8. How many doctors are neither players nor artists? (A) 28 (B) 20 (C) 25 (D) 10 9. How many artists are players but not doctors? (A) 20 (B) 25 (C) 28 (D) 10 Directions (Q,No. 10 - 13): In the following questi ons, group of four figures are given in questions. Out of these four figures one figure is different, while t hree figures are similar in some way. Find out the different figure (odd one out). 10.

    11.

    12.

    13.

    Directions (Q.No. 14 - 18): Read the information gi ven below and answer the following questions. (i) A, B, C, D, E and F are six members of a family . (ii) One couple has parents and their children in t he family. (iii) A is the son of C and E is the daughter of A. (iv) D is the daughter of F, who is the mother of E .

    Space for rough work

  • STRD-2014 -CLASS - 10 -P 4 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    14. Who are the male members in the family?

    (A) A and C (B) C and F (C) A, B and D (D) D and F

    15. Which of the following pairs is the parents of the children? (A) BC (B) CF (C) BF (D) None of these

    16. Which of the following pairs is the parents of the couple? (A) AB (B) BC (C) AF (D) CF

    17. How many female members are there in the family? (A) Two (B) Three (C) Four (D) Can’t be determined

    18. What relationship of D and E bear to each other? (A) Sister and brother (B) Mother and son (C) Grandmother and granddaughter (D) Sisters

    Directions (Q.No. 19 - 21): In the following questi ons, three are alike in certain way and so form a g roup. Which is one that does not belong to that group. 19. (A) Lock-key (B) Motorcycle-fuel (C) Book-copy (D) River-water

    20. (A) Food : Hunger (B) Water : Thirst (C) Air : suffocation (D) Talent : Education

    21. (A) Stallion : Colt (B) Drake : Duck (C) Dog : Bitch (D) Drone : Bee

    Directions (Q.No. 22 - 24): In each of the followin g questions, certain pairs of words are given out o f which the words in all pairs except one, bear a certain c ommon relationship choose the pair in which the wor ds are differently related. 22. (A) Tripitaka : Buddhist (B) Temple : Hindu (C) Avesta : Parasi (D) Torah : Jew

    23. (A) Whale : Mammal (B) Frog : Amphibian (C) Salamander : Insect (D) Snake : Reptile

    24. (A) Donald : Comedy (B) Holmes : Suspense (C) Premchand : Novel (D) Robinson : Adventure

    Space for rough work

  • STRD-2014 -CLASS - 10 -P 5 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    25. If ‘TEAM’ is coded as ‘VGCO’, then ‘LIFE’ will be coded as

    (A) NJGE (B) NLIH (C) NKHH (D) NKHG

    26. In a certain code language, ‘MAN’ is coded as ‘NBO’, then in the same code language ‘TUL’ will be written as (A) UVP (B) UWN (C) UVM (D) UMW

    27. If the word ‘CLERK’ is coded as ‘EOIWQ’, how would you code the word ‘TABLE’? (A) VCDNG (B) VCDGN (C) VDFQK (D) VDFOK

    28. If the word ‘TRADE’ is coded as ‘XVEHI’, how the word ‘PUBLIC’ should be coded? (A) TYFMPG (B) SXEOLF (C) TYFPMG (D) SXLLOP

    29. In a certain code, ‘POLISH’ is written as ‘MLIFPE’, then ‘DIG’ is the code for which word? (A) GLJ (B) CHI (C) ECH (D) AFD

    30. Choose the alternative which most closely resembles the mirror image of DBV8478

    (A) (B) (C) (D)

    Space for rough work

  • STRD-2014 -CLASS - 10 -P 6 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    MathematicsMathematicsMathematicsMathematics Section Section Section Section –––– I I I IIIII

    1. Null set is a set which has ……….. (A) finite number of elements (B) infinite number of elements (C) no element (D) only one element

    2. 2

    1( )

    1

    xf x

    x

    +=

    + then (1) ( 1)f f+ − is …………

    (A) 1 (B) 0 (C) 1

    2 (D)

    1

    4

    3. For any three sets A, B and C, ( )A B C∩ ∪ is ……………. (A) ( ) ( )A B B C∪ ∪ ∩ (B) ( ) ( )A B A C∩ ∪ ∩ (C) ( )A B C∪ ∩ (D) ( ) ( )A B B C∪ ∩ ∪ 4. If ( ) 20, ( ) 30n A n B= = and ( ) 40,n A B∪ = then ( )n A B∩ is equal to ………….. (A) 50 (B) 10 (C) 40 (D) 70

    5. Given ( ) ( 1)xf x = − is a function from N to Z. Then the range of f is ……………… (A) {1} (B) N (C) {1, 1}− (D) Z

    6. If 1 2 3, , ,..., na a a a are in A.P., such that 4

    7

    3,

    2

    a

    a= then the 13th term of the A.P. is …………….

    (A) 3

    2 (B) 0 (C) 112a (D) 114a

    7. If , ,a b c are in A.P. then a b

    b c

    −−

    is equal to ……………..

    (A) a

    b (B)

    b

    c (C)

    a

    c (D) 1

    Space for rough work

  • STRD-2014 -CLASS - 10 -P 7 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    8. The first term of an A.P. is 4, last term is 44, there are 7 terms. Hence their sum is …………… (A) 48 (B) 333 (C) 168 (D) 280

    9. 1

    (2 1)n

    k

    k=

    −∑ is ………………

    (A) 2k (B) 2(2 1)k − (C) 2n (D) ( 1)2

    n n +

    10. If , ,a b c are in A.P. then 1 1 1

    , ,bc ca ab

    are in ………..

    (A) not in A.P. (B) not in G.P (C) G.P. (D) A.P.

    11. If 3 9 1 3

    3 .12 2 4x

    =

    Find x …………..

    (A) 5 (B) 6 (C) 2 (D) 3

    12. If

    2

    ( 1 2 4) ( 10)

    3

    a

    − − = − −

    then the value of a is ………………

    (A) 4 (B) 2 (C) 0 (D) – 2

    13. If 7 2

    1 3A

    =

    and 1 0

    2 4A B

    − + = −

    then the matrix B = …………..

    (A) 1 0

    0 1

    (B) 6 2

    3 1

    (C) 8 2

    1 7

    − − −

    (D) 8 2

    1 7

    Space for rough work

  • STRD-2014 -CLASS - 10 -P 8 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    14. Which one of the following is true for any two square matrices A and B of same order?

    (A) ( )T T TAB A B= (B) ( )T T T TA B A B= (C) ( )TAB BA= (D) ( )T T TAB B A=

    15. If 1 2

    3 4A

    − = −

    and ,A B O+ = then B is …………..

    (A) 1 2

    3 4

    − −

    (B) 1 2

    3 4

    − −

    (C) 1 2

    3 4

    − − − −

    (D) 1 0

    0 1

    16. In the adjoining figure, chords AB and CD intersect at P. If AB = 16

    cm, PD = 8 cm, PC = 6 and AP > PB, then AP = ………… (A) 8 cm (B) 4 cm (C) 12 cm (D) 6 cm 17. The sides of two similar triangles are in the ratio 2 :3, then their areas are in the ratio ……………. (A) 9 : 4 (B) 4 :9 (C) 2 :3 (D) 3: 2

    18. In figure, if , 40 ,AB BD

    BAC DC

    = ∠ =�

    and 60 ,C∠ =�

    then

    ..........BAD∠ = (A) 30

    (B) 50�

    (C) 80�

    (D) 40�

    19. In ,ABC AD∆ is a median and also bisects .A∠ If 16 , 8AB cm BC cm= = then ? ......AC = (A) 2( 4) (B) 8 (C) 24 (D) 2

    Space for rough work

  • STRD-2014 -CLASS - 10 -P 9 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    20. If 1 2 3 25a , a , a , ....., a are in A.P. and 3 5 12 14 21 23a a a a a a 60,+ + + + + = then 2 7 19 24a a a a+ + + = (A) 30 (B) 40 (C) 120 (D) 180 21. The equation of a line with 3, 4 as intercept is ……………. (A) 3 4 7x y+ = (B) 4 3 7x y+ = (C) 4 3 12x y+ = (D) none of these

    22. If m is the slope of 3 4 8 0,x y+ + = find 216m …………. (A) 12 (B) 8 (C) 16 (D) 9

    23. Slope of line joining ( 6,13)− and (3, )a is 1,3

    − find a …………….

    (A) 2− (B) 2 (C) 10 (D) – 10

    24. The angle of inclination of the line 3 2 0x y− + = is ……………

    (A) 90�

    (B) 0�

    (C) 30�

    (D) 60�

    25. The point of intersection of the straight lines 9 2 0x y− − = and 2 9 0x y+ − = is …………. (A) ( 1, 7)− (B) (7,1) (C) (1, 7) (D) ( 1, 7)− − 26. A man is 28.5 m away from a tower. His eye level above the ground is 1.5 m. The angle of elevation of the

    tower from his eyes is 45�

    . Then the height of the tower is …………….. (A) 30 m (B) 27.5 m (C) 28.5 m (D) 27 m

    27. 22

    1sin .........

    1 tanθ

    θ+ =

    +

    (A) 2 2cos cotec θ θ+ (B) 2 2cos cotec θ θ− (C) 2 2cot cosecθ θ− (D) 2 2sin cosθ θ−

    Space for rough work

  • STRD-2014 -CLASS - 10 -P 10 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    28. 4 2 4 2tan tan sec sec ........θ θ θ θ+ − + = (A) 2 (B) – 1 (C) 1 (D) 0 29. If cos cot 3ecA A− = then cos cot ..........ec A A+ =

    (A) 1

    3

    − (B)

    1

    3 (C) 3− (D) 1

    30. 2 2(cos 1) (cot 1) 1 ..............θ θ− + + = (A) 1 (B) 1− (C) 2 (D) 0

    Physics Physics Physics Physics Section Section Section Section –––– I I I IIIIII I I I 1. Select the correct statement (A) The ratio of least counts of vernier calipers and screw gauge is 0.1

    (B) In screw gauge, if the zero of the circular scale advances the reference line, the zero correction in positive.

    (C) In screw gauge, the least count is independent of number of division on the circular scale

    (D) none of the above

    2. The mains constituent of LPG is (A) Propane (B) methane (C) Butane (D) Ethane

    3. Mass of a planet and radius of a planet are double that of earth. Acceleration due to gravity on the planet gp is

    (A) g (B)g2

    (C) 2g (D) 8g

    4. The most suitable material for making the core of an electromagnet is (A) steel (B) iron (C) soft iron (D) aluminium

    5. The direction of induced current is determined by (A) Flemings right hand rule (B) Fleming’s left hand rule

    (C) right hand screw rule (D) none of these

    Space for rough work

  • STRD-2014 -CLASS - 10 -P 11 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    6. The refractive index of glass and water respect to air are 3/2 and 4/3 respectively. The refractive index of glass with respect to water is ………..

    (A) 8/9 (B) 9/8 (C) 1/12 (D) 2

    7. If a convex lens forms a five fold magnified image on the screen at a distance of 160cm, find its focal length. (A) 52 cm (B) 26.66 cm (C) 18 cm (D) 36 cm

    8. A force F1 acting on a 2kg body produces an acceleration of 2m/s2

    and the force F2 produce an acceleration of 4 m/s2.

    Find

    1

    2

    F

    F

    (A) 1 : 3 (B) 3 : 1 (C) 1 : 2 (D) 2 : 1

    9. A body of mass 2kg falls from a height of 19.6 m. On reaching the ground its momentum is (g = 9.8 m/s2) (A) 19.6 Ns (B) 39.2 Ns (C) 9.8 Ns (D) 78.4 Ns

    10. A 1kg shell is fired from a gun of mass 100 kg with a velocity 100 ms-1. The velocity of recoil of the gun is a) 0.1 ms

    -1 b) 0.5 ms

    -1 c) 1 ms

    -1 d) 2 ms

    -1

    11. When a parallel beam of light falls on a plane mirror the beam after reflection (A) remains parallel (B) becomes convergent (C) becomes divergent (D) either (A)or (B)

    12. Which of the following produce an erect, magnified and virtual image. (A) Plane mirror (B) Concave mirror (C) Convex mirror (D) Both 1 and 2

    13. The radius of curvature of a convex mirror is 40 cm. Then its focal length is (A) 20 cm (B) 40 cm (C) -20 cm (D) -40 cm

    Space for rough work

  • STRD-2014 -CLASS - 10 -P 12 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    14. An object 5 cm high is placed at a distance of 15 cm from a concave mirror of radius of curvature 20 cm. The height of the image is cm

    (A) 5 cm (B) 20 cm (C) 15 cm (D) 10 cm

    15. During refraction of light, rsin

    isin= constant. The value of constant depends upon

    (A) pair of media (B) colour of incident light

    (C) wavelength (D) all the above

    16. 1 micro coulomb is equal to a) million electrons b) 6.25 x 10

    -12 electrons c) 6.25 x 10

    12 electrons d) 16 x 10

    12 electrons

    17. The number of electrons flowing through a section of a conductor in one nanosecond, if the current through the conductor is 0.75 A

    a) 4687.5 million b) 625 x 106 c) 75 million d) 16 x 10

    6

    18. Two charges 8C and −6C are placed with a distance of separation d between them and exert a force of magnitude F on each other. If a charge 8C is added to each of these and they are brought nearer by a distance d/3, the magnitude of

    force between them will be

    (A) F3

    1 (B) F

    4

    9 (C) F

    2

    3 (D) F

    3

    2

    19. The resistance of a conductor depends upon its

    (A) length (B) radius (C) temperature (D) all the above

    20. The effective resistance between A and B in the given circuit is

    (A) 20 Ω (B) 7 Ω (C) 3 Ω (D) 6 Ω

    Space for rough work

  • STRD-2014 -CLASS - 10 -P 13 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    Chemistry Chemistry Chemistry Chemistry Section Section Section Section ––––IIIIVVVV 1. The volume occupied by 100g of CO2 at STP is (A)22.4 L (B)11.2 L (C)50.9 L (D)25.4 L 2. Which of the following statements is incorrect? (A) Neutralisation reactions are not redox reactions (B) Simple displacement reactions are redox reactions (C) Double displacement reactions are redox reactions (D) Neutralisation reactions are exothermic reactions 3. How many moles of oxygen are present in 24.5g of sulphuric acid? (A)1 (B)5 (C)4 (D)0.25 4. Which of the following is a colloid? (A)Cloud (B)Sponge (C)Blood (D)All the above 5. The metal that can’t displace hydrogen from dilute acids is (A)Mg (B)K (C)Hg (D)Al 6. Tyndall effect is shown by (A)NaCl mixed with water (B)CuSO4 mixed with water (C)Ca(OH)2 mixed with water (D)Sugar mixed with water 7. Carbon compounds in which the carbon atoms are linked by only single bonds are said to be (A)saturated (B)unsaturated (C)aromatic (D)b and c 8. Bronsted acid from the following is (A)HCl (B)HSO4

    - (C)H2O (D)All the above 9. Number of electrons present in 18 ml of water (density 1g/ml) are (A) 236.023 10× (B) 246.023 10× (C) 256.023 10× (D) 216.023 10×

    Space for rough work

  • STRD-2014 -CLASS - 10 -P 14 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    10. PH of 0.001M HCl is (A) 1 (B)6 (C)3 (D)4 11. Oxidation state of Chromium in Potassium dichromate is (A)+3 (B)+5 (C)+7 (D)+4 12. Which of the following is heaviest? (A)0.1 moles of 2CO (B)0.5 moles of 2N

    (C) 226.023 10× molecules of 3NH (D)226.023 10× molecules of 3SO

    13. Concentration of ore by Froth floatation is generally employed for (A)Oxide ores (B)Sulphide ores (C)Carbonate ores (D)Halide ores

    14. The IUPAC name of ||

    3 3CH C CH

    O

    − − is (a) Acetone (b) Propanone (c) Propanal (d) Propanoic Acid 15. Which among the following statements doesn’t belong to modern periodic table? (A)The table is based on Atomic numbers (B)Position of isotopes is justified. (C)Position of Hydrogen is fixed. (D)A period starts with Alkali metal. 16. 2 3 2 3Fe O + 2Al Al O + 2Fe.→ The above reaction is an example of (a) combination reaction (b) double displacement reaction (c) decomposition reaction (d) displacement reaction

    Space for rough work

  • STRD-2014 -CLASS - 10 -P 15 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    17. Which among the following statements doesn’t belong to a homologous series? (a) physical properties are same (b) chemical properties remain same (c) Have some common methods of preparation (d) Consecutive molecules differ by 14 units of mass. 18. To which group and period does element X belong if its atomic number is 15? (A)Group I and Period 2 (B)Group II and Period 2 (C)Group V and Period 3 (D)Group IV and Period 3 19. If the amount of substance dissolved is equal to Solubility, then the solution is (A)Unsaturated (B)Saturated (C)Super saturated (D)Suspension 20. Metals react with acid and produce (A)Hydrogen gas (B)Oxygen gas (C)Carbon dioxide gas (D)No gas is produced

    ******

    Space for rough work

  • STRD-2014 -CLASS - 10 -P 16 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    Space for Rough work

  • STRD-2014 -CLASS - 10 -P 17 IQ, Maths, Phy & Chem

    Regional Head Quarters: : : : FIITJEE TOWERS, No.3, First Lane, (Next Apex Plaza), Nungambakkam High Road, Nungambakkam, Chennai – 600 034.

    SAMACHEER TALENT RECOGNITION DRIVE CLASS - 10 - (10 th going to 11 th)

    ANSWER KEY IQIQIQIQ

    1. A 2. D 3. A 4. B 5. D 6. C 7. B 8. A 9. A 10. C 11.C 12.A 13.A 14. A 15. D 16. B 17. C 18. D 19. C 20. D 21. A 22. B 23. C 24. C 25. D 26. C 27. C 28. C 29.D 30.D

    MathematicsMathematicsMathematicsMathematics 1. C 2. A 3. B 4. B 5. C 6. B 7. D 8. C 9. C 10. D 11. B 12. D 13. C 14. D 15. B 16. C 17. B 18. D 19. C 20. B 21. C 22. D 23. C 24. D 25. C 26. A 27. B 28. D 29. B 30. D

    PhysicsPhysicsPhysicsPhysics 1.B 2.C 3.B 4.C 5.A 6.B 7.B 8.D 9.B 10.C 11.A 12.B 13.A 14.D 15.A 16.C 17.A 18.C 19.D 20.D

    ChemistryChemistryChemistryChemistry

    1.C 2.C 3.A 4.D 5.C 6. C 7.A 8.D 9.B 10.C 11.C 12.B 13.B 14.B 15.C 16.D 17. A 18.C 19.B 20. A