1.For a given equilibrium reaction,an increase in temperature will :

(1) increase the rate of exothermic direction more than the endothermic direction

(2) increase the rate of endothermic direction more than the endothermic direction

(3) increase both rate equally

(4) decrease both rate equally

2.The dissociation constants of two weak acids are K₁ and K₂.The relative strength of two acid is given by :

(1)	K1/K2	(2)
(3)	(K1/K2)1/2	(4)	(K1/K2)3/2

3.Give pK_w(H₂O)=13.54 at 40^oC.Predict the nature of solution having pH=7 at 40^oC :

(1)	acidic	(2)	alkaline
(3)	neutral	(4)	cannot be predicted

4.Consider the reaction

CaCO₃ (s) CaO (s) + CO (g) in a closed container at equilibrium.What would be the effect of addition of CaCO₃ on the equilibrium concentration of CO₂ :

(1)	Increases	(2)	Decreases
(3)	Data insuffcient	(4)	Remains unaffected

5.For the expression,rate = K (a)² when the concentration of reactants is doubled the rate of reaction would undergo :

(1)	An eight fold increase	(2)	Six fold increase
(3)	Two fold increase	(4)	Four fold increase

6.The pH of 0.1M NH₄ OH (K_b = 1.8 x 10^-5 M) at 25^oC is :

(1)	2.87	(2)	1.8
(3)	11.13	(4)	12.2

7.If initial concentration is reduced to 1/4^th in a zero order reaction,the time taken for half the reaction to complete :

(1)	remains same	(2)	becomes 4 times
(3)	becomes one fourth	(4)	doubles

8.There is a formation of precipitate almost instantly when alcoholic AgNO₃ reacts with :

(1)	I,II and III	(2)	I and II
(3)	II and III	(4)	I and III

9.Acidic nature of CH₃OH (I),CH₃SH (II) and CH₃NH₂ (III) is in order :

(1)	III < II < I	(2)	III < I < II
(3)	I < II < III	(4)	II < I < III

10.Basic nature order of ,H₂O, is in order :

(1)	H3O+ < H2O <	(2)	H2O < < H3O+
(3)	< H2O < H3O+	(4)	= H3O+ = H2O

11.Most stable carbocation :

(1)		(2)
(3)		(4)

12.Arrange in increasing p^kb values are :

(1)
(2)
(3)
(4)	None of these

13.The degree of hydrolysis of 0.01M KCN when K_a of HCN = 6.2 x 10^-10 is :

(1)	5%	(2)	4%
(3)	20%	(4)	None

14.Eight moles of a gas AB₃ are introduced into a previously evacuated 1 dm³ container in which it dissociated as 2AB₃ (g) A₂ (g) +3B₂ (g).At equilibrium 2 mol. of A₂ (g) is present then K_e is :

(1)	72 mol2 I-2	(2)	36 mol2 I-2
(3)	3 mol2 I-2	(4)	27 mol2 I-2

15.pOH of H₂O is 7.0 at 298 K.If water is heated at 350 K,which of the following should be true:

(1) pOH will decrease

(2) pOH will increase

(3) pOH will remain 7.0

(4)Concentration of H⁺ ions will increase but that of OH^- will decrease

16.M₂SO₄ (M⁺ is a monovalent metal ion) has a K_sp of 3.2 x 10^-5 at 298 K.The maximum concentration of SO₄^-2 ion that could be attained in a saturated solution of this solid at 298 K is :

(1)	3 x 10-3 M	(2)	7 x 10-2 M
(3)	2.89 x 10-4 M	(4)	2 x 10-2 M

17.A reaction is found to be second order w.r.t. one of the reactants & has rate constant of 0.5 mol^-1 dm³ min^-1.If initial concentration is 0.2 mol dm^-3 then t_1/2 of reaction is :

(1)	5 min	(2)	10 min
(3)	15 min	(4)	20 min

18.The solubility product of AgCl is 4 x 10^-10 at 298 K.The solubility of AgCl in 0.04M CaCl₂ will be :

(1)	2 x 10-5 M	(2)	5 x 10-9 M
(3)	10-4 M	(4)	2.2 x 10-4 M

19.Taking Ba(OH)₂ to be completely ionised.The pH of its 0.001 M solution is :

(1)	11.3	(2)	2.7
(3)	11	(4)	3

20.Which of the following will give highest enol content?

(1)		(2)
(3)		(4)

21.Which of the following is least stable?

(1)		(2)
(3)		(4)

22.The major product (P) of the reaction

(1)		(2)
(3)		(4)	None

23.,both A and B gives positive Tollen's test,then,A and B will be respectively.

(1)	HCHO,HCOOH	(2)	HCOOH,HCHO
(3)	HCOOH,HCOOH	(4)	HCHO,HCHO

24.(X) . (X) and (Y) are :

(1)	isomers	(2)	identical
(3)	either (A) or (B)	(4)	neither (A) or (B)

25.When CO₂ dissolves in water,the dollowing equilibrium is established
CO₂ + 2H₂O H₃O⁺ + HCO₃^-; for which the equilibrium constant is 3.8 x 10^-6 and pH = 6.0.What would be the ratio of concentration of bicarboate ion to carbon dioxide :

(1)	3.8 x 10-12 M	(2)	3.8
(3)	6	(4)	13.4

26.Which of the following expression is not true :

(1) For a natural solution

(2)For an acidic solution

(3)For an alkaline solution

(4)For a neutral solution at all temperatures

27.The rate constant for the reaction,2N₂O₅ 4NO₂ + O₂, is 3.0 x 10^-5 sec.If the rate of reaction is 2.40 x 10^-5 mol I^-1 sec^-1,then the concentration of N₂O₅ ( in mol lit^-1) is :

(1)	1.4	(2)	1.2
(3)	0.04	(4)	0.8

28.If is the fraction of HI dissociated at equilibrium in the reaction, 2HI H₂ + I₂, starting with 2 mol of HI, the total number of moles of the reactants and products at equilibrium is :

(1)	1	(2)	1 +
(3)	2	(4)	2 + 2

29.In the two gaseous equilibria (i) and (ii) at a certain temperature

(i) SO₂ (g)1/2 O₂ (g) SO₃ (g)........K₁
(ii)2SO₃ (g) 2SO₂ + O₂ (g)........K₂

If K₁ is 4 x 10^-3 then K₂ will be :

(1)	8 x 10-3	(2)	16 x 10-6
(3)	6.25 x 104	(4)	6.25 x 108

30.Initially,0.8 mole of PCl₅ and 0.2 mole of PCl₃ are mixed in one litre vessel.At equilibrium,0.4 mole of PCl₃ is present.The value of K_e for the reaction PCl₅ (g) PCl₃ (g) + Cl₂ (g) would be :

(1)	0.13 mol I-1	(2)	0.05 I-1
(3)	0.013 mol I-1	(4)	0.66 I-1

31.The end product of the reaction is :

(1)		(2)
(3)		(4)	None

32. Which of the following is not aromatic?

(1)		(2)
(3)		(4)

33.Which of the following will undergo fastestdehydrobromination?

(1)		(2)
(3)		(4)

34.Which of the following is the most basic?

(1)		(2)
(3)		(4)

35.Which of the following carbon will give fastest deprotonation?

(1)

4

(2)

5

(3)

2

(4)

3

36.Which of the following is the correct statement?
(1) C₆H₆ and C₆D₆ has equal reactivity towards iodination
(2) C₆H₆ and C₆D₆ has equal reactivity towards sulphonation
(3) C₆D₆ is less reactive than C₆H₆ towards sulphonation
(4) C₆H₆ is more reactive than C₆D₆ towards nitration

37.Find out the end product of the reaction.

(1)		(2)
(3)		(4)

38.Which of the following is the product (P) in the sequence of the reaction?

(1)		(2)
(3)		(4)

39.Which of the following compounds have a dipole moment?

(1)		(2)
(3)		(4)	None of these

40. If the carbocation rearranges to gain stability,it will rearrange to :

(1)		(2)
(3)		(4)