Basic Concepts in Chemistry-Mole Concept (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry): Questions 1 - 4 of 18

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Question number: 1

» Basic Concepts in Chemistry » Mole Concept

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Assertion-Reason▾

Question

Assertion (Ꭺ)

Equivalent weight of in is 31.8 and in is 63.6.

Reason (Ꭱ)

Equivalent weight of an element

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 false

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is true but Ꭱ is false

Question number: 2

» Basic Concepts in Chemistry » Mole Concept

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Assertion-Reason▾

Question

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 but Ꭱ is NOT the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is true but Ꭱ is false

Question number: 3

» Basic Concepts in Chemistry » Mole Concept

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MCQ▾

Question

In the final answer of the expression . The number of significant figures is

Choices

Choice (4) Response

a.

4

b.

3

c.

2

d.

1

Question number: 4

» Basic Concepts in Chemistry » Mole Concept

Edit
Assertion-Reason▾

Question

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 true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are false

d.

Ꭺ is false but Ꭱ is true

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