Basic Concepts in Chemistry-Mole Concept (NEET Chemistry): Questions 1 - 4 of 7

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 677 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 350.00 or

Question number: 1

» Basic Concepts in Chemistry » Mole Concept

Assertion-Reason▾

Assertion (Ꭺ)

Equivalent weight of Cu in CuO is 31.8 and in Cu2O is 63.6.

Reason (Ꭱ)

Equivalent weight of an element

AtomicweightoftheelementValencyoftheelement

Choices

Choice (4) Response
a. Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ
b. Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ
c. Ꭺ is true but Ꭱ is false
d. Ꭺ is false but Ꭱ is true

Question number: 2

» Basic Concepts in Chemistry » Mole Concept

Assertion-Reason▾

Assertion (Ꭺ)

As mole is the basic chemical unit, the concentration of the dissolved solute is usually specified in terms of number of moles of solute.

Reason (Ꭱ)

The total number of molecules of reactants involved in a balanced chemical equation is known as molecularity of the reaction.

Choices

Choice (4) Response
a. Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ
b. Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ
c. Both Ꭺ and Ꭱ are false
d. Ꭺ is true but Ꭱ is false

Question number: 3

» Basic Concepts in Chemistry » Mole Concept

MCQ▾

Question

In the final answer of the expression (29.220.2)(1.79×105)1.37 . The number of significant figures is

Choices

Choice (4) Response
a.

1

b.

2

c.

3

d.

4

Question number: 4

» Basic Concepts in Chemistry » Mole Concept

Assertion-Reason▾

Assertion (Ꭺ)

1.231 has three significant figures.

Reason (Ꭱ)

All numbers right to the decimal point are significant.

Choices

Choice (4) Response
a. Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ
b. Ꭺ is false but Ꭱ is true
c. Both Ꭺ and Ꭱ are false
d. Ꭺ is true but Ꭱ is false

Sign In