IIT-JEE-Chemistry-Final Revision Set No.84

1. The structure of XeO3 is

(A) linear

(B) planar

(C) pyramidal

(D) T-shaped

2. XeF4 and XeF6 are expected to be

(A) oxidizing

(B) reducing

(C) unreactive

(D) strongly basic

3. STATEMENT-1

Micelles are formed by surfactant molecules above the critical miceller concentration (CMC).

Because

STATEMENT-2

The conductivity of a solution having surfactant molecules decreases sharply at the CMC.

(A) Statement-1 is True, Staement-2 is True, Statement-2 is a correct explanation for statement-1.

(B) Statement-1 is True, Staement-2 is True, Statement-2 is not a correct explanation for statement-1.

(C) Statement-1 is True, Statement-2 is False

(D) Statement-1 is False, Statement-2 is True

4. p-Hydroxybenzoic acid has a lower boiling point than o-hydroxybenzoic acid.

Because

STATEMENT-2

o-Hydroxybenzoic acid has intramolecular hydrogen bonding.

(A) Statement-1 is True, Staement-2 is True, Statement-2 is a correct explanation for statement-1.

(B) Statement-1 is True, Staement-2 is True, Statement-2 is not a correct explanation for statement-1.

(C) Statement-1 is True, Statement-2 is False

(D) Statement-1 is False, Statement-2 is True

5.

Match the chemical substances in Column I with type of polymers/type of bonds in Column II.



Column I -------Column II


Cellulose -- Synthetic polymer




Nylon-6, 6 -- Glycoside linkage



Protein-----Amide linkage



Sucrose---- Natural polymers


Source: 2007 JEE paper 1