Basic Concepts in Chemistry (NEET Chemistry): Questions 10 - 15 of 91

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Question number: 10

» 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: 11

» Basic Concepts in Chemistry » Chemical Equations and Stoichiometry

MCQ▾

Question

Equation 0.01 equivalent of the mentioned acid will neutralize how many grams of Equation ?

Choices

Choice (4) Response

a.

0.2

b.

0.3

c.

0.4

d.

0.1

Question number: 12

» Basic Concepts in Chemistry » Molar Mass

MCQ▾

Question

The density of Equation at NTP is 1.429 Equation . Calculate the standard molar volume of gas-

Choices

Choice (4) Response

a.

33.6 lit

b.

5.6 lit.

c.

11.2 lit

d.

22.4 lit.

Question number: 13

» Basic Concepts in Chemistry » Empirical and Molecular Formulae

MCQ▾

Question

6.90 gm of a metal carbonate were dissolved in 60 ml of 2 (N) Equation . The excess acid was neutralized by 20 ml of 1 (N) Equation . What is the equivalent wt. of metal?

Choices

Choice (4) Response

a.

19

b.

20

c.

40

d.

39

Passage

Read the passage given below and answer the questions that follows :

The oxidation state of the elements in the pure state = 0. The equivalent wt. of the element

E = Equation where x = valency

The equivalent wt. of any compound = sum of the equivalent wt. of component elements or ions.

By using this relation we can calculate the equivalent wt. of any acidic and basic oxide.

Question number: 14 (1 of 2 Based on Passage) Show Passage

» Basic Concepts in Chemistry » Empirical and Molecular Formulae

MCQ▾

Question

Equiv. wt. of Equation is -

Choices

Choice (4) Response

a.

33

b.

46.34

c.

26.5

d.

38.3

Question number: 15 (2 of 2 Based on Passage) Show Passage

» Basic Concepts in Chemistry » Empirical and Molecular Formulae

MCQ▾

Question

Equiv. wt. of Equation is -

Choices

Choice (4) Response

a.

33

b.

26.5

c.

38.3

d.

46.34

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