AIEEE Sample Question Papers – Chemistry 04

Chemistry
1. The separation energy of the electron, present in shell n = 3 is 1.51 eV. What is the energy in the first excited state?

(A) – 1.51 eV

(B) – 3.4 eV

(C) + 1.51 eV

(D) – 13.6 eV

2. If the electron is present in the n = 5 level, how many lines would be observed, in case of H- atom ?

(A) 10

(C) 7

(B) 5

(D)4

3. Total number of moles of electrons in one mole of K 2 Cr 2 0 7 will be

(A) 142

(C) 140

(B) 86

(D) 100
4. ? = X A – X B = 2. What is the percent ionic character for a covalent molecule A – B ?

(A) 46

(B) 50

(C) 20

(D) 30

5. If Y = then y will show the maximum value for the compound

(A) Rbl

(C) RbF

(B) Lil

(D) LiF

6. Three fold symmetrical axis is associated with the molecule

(A) NH 3

(B) C 2 H 4

(C) CO 2

(D) S0 2

7. K c for the reaction 2NaHCO 3(S) Na 2 CO 3(S) + CO 2(g) + H 2 O (g) is

(A) K c = [Na 2 CO 3 ]

[NaHCO 3 ] 2

(B) K c = [Na 2 CO 3 ] [CO 2 ] [H 2 O]

[NaHCO 3 ] 2

(C) K c = [CO 2 ] [H 2 O]

(D) K c = PCO 2 X PH 2 O

,.

8. A substance whose initial concentration is ‘a’ reacts according to zero order kinetics. The time required for completion will be

(A) a

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