UG–1 & 2, Concorde Complex, Above OBC Bank. R.C. Dutt Road., Alkapuri Baroda. Ph. 6625979, 6534152 1

1. (d)

2H2 + O

2 2H2O

4g 32g 36g

10g 64g xg

Limiting Reagent is O2

64gO2 gives 72g H

2O 4 moles of H

2O

2. (d)

3. (b) BaCl2 is salt of strong base

4. (c) o o o om 3 m 3 m mCH COOH CH COONa HCl NaCl

5. (d) 1 mole4

23 110Na 6.023 10 mol100

vacancies

6. (b) isotonic solutions, have equal molecular concentration

1 2x 10C C60 342

.

7. (b)2

1 1 2

1 1log2.303

ak Ek R T T

1 1log22.303 8.314 300 310

aE

53.60 /aE kJ mol

8. (b)

9. (d) Mass of aluminium, m = 60.0 g

Rise in temperature, 55 35 20t C C C

Molar heat capacity, C=24 K-1 mol-1

Heat required1 160.0 24 20

27 /g J K mol C

g mol

60 24 20 1066.7 1.0727

J J kJ

10. (b) ZnO and Fe2O

3

11. (b)

12. (d) This mixture has a lower melting point than NaCl

13. (b) absence of bond polarity

14. (a)

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UG–1 & 2, Concorde Complex, Above OBC Bank. R.C. Dutt Road., Alkapuri Baroda. Ph. 6625979, 6534152 2

15. (b) Na2CdCl

4

16. (a) LiF> LiCl > LiBr > LiI

17. (b)

18. (c) Trigonal bipyramidal dz2

19. (d)

20. (c)

The terminal CH2 group (=CH

2) is completely oxidised to CO

2.

a converted to aldehyde which is further oxidised to carboxylic acid, and the disubstituted atom of a douiblebond is oxidised to ketone.

4(i)KMnO

H heat(ii)H

2 3CO CH C

2CH

C2 2HO C CH CH

O

O

O

2CO

21. (a)

An electron with drawing group - NO2 deactivity the benzene ring towards electrophyllic substition reaction.

22. (c)

23. (d)

24. (b)

25. (c) IV > III > II > I

26. (b)NH

O

O

27. (c) CH3COCH

2CN

28. (b) C6H

5COOC

2H

5

29. (a) C = O and OH

30. (d)12