Basic Concepts in Chemistry-Mole Concept (KVPY Stream-SA (Class 11) Chemistry): Questions 1 - 5 of 5

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 133 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 150.00 or

Question number: 1

» Basic Concepts in Chemistry » Mole Concept

Appeared in Year: 2014

MCQ▾

Question

Complete reaction of 2.0 g of calcium (at. wt. = 40) with excess HCL produces 1.125 L of H2 gas. Complete reaction of the same quantity of another metal “M” with excess HCL produces 1.85 L of H2 gas under identical conditions. The equivalent weight of “M” is closest to

Choices

Choice (4) Response

a.

23

b.

12

c.

9

d.

7

Question number: 2

» Basic Concepts in Chemistry » Mole Concept

Appeared in Year: 2014

MCQ▾

Question

The volume of oxygen at STP required to burn 2.4 g of carbon completely is

Choices

Choice (4) Response

a.

8.96 L

b.

2.24 L

c.

1.12 L

d.

4.48 L

Question number: 3

» Basic Concepts in Chemistry » Mole Concept

Appeared in Year: 2014

MCQ▾

Question

Zinc sulphate contains 22.65 % of zinc and 43.9 % of water of crystallization, if the law of constant proportions is true, then the weight of zinc required to produce 20 g of the crystals will be

Choices

Choice (4) Response

a.

4.53 g

b.

0.453 g

c.

453 g

d.

45.3 g

Question number: 4

» Basic Concepts in Chemistry » Mole Concept

Appeared in Year: 2010

MCQ▾

Question

The molar mass of CaCO3 is 100 g. The maximum amount of carbon dioxide that can be liberated on heating 25 g of CaCO 3 is -

Choices

Choice (4) Response

a.

11 g

b.

2.2 g

c.

22 g

d.

55 g

Question number: 5

» Basic Concepts in Chemistry » Mole Concept

Appeared in Year: 2014

MCQ▾

Question

What is the equivalent weight of ClO3 in the following reaction?

ClO3+Fe2++H+CF+Fe3++H2O

Choices

Choice (4) Response

a.

43.9167

b.

33.9167

c.

23.9167

d.

13.9167

f Page
Sign In