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

Question 1

Assertion-Reason▾

Equivalent weight of in is 31.8 and in is 63.6.

Equivalent weight of an element

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 2

Assertion-Reason▾

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

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

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 3

MCQ▾

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

Question 4

Assertion-Reason▾

1.231 has three significant figures.

All numbers right to the decimal point are significant.

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

Question number: 1