NCERT Class 10 Science-Chemical Reactions and Equation[Chemical Equations] [NCERT Based General Studies (GS)]: Questions 1 - 5 of 9

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Question 1

Question MCQ▾

The chemical reactions in which heat is absorbed are called as:

Choices

Choice (4)Response

a.

Reactions with – Heat term on product side

b.

Endothermic reactions

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

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Question 2

Question MCQ▾

Concentration of the reactants is denoted by the:

Choices

Choice (4)Response

a.

Fast or slow

b.

Conc. (for concentration)

c.

dil. (for dilute)

d.

Both b. and c. are correct

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Question 3

Question MCQ▾

Letters used for giving information regarding the physical states of the reactants and products are:

Choices

Choice (4)Response

a.

S, l, g and aq

b.

S, l, G and Aq

c.

S, L, G and Aq

d.

Question does not provide sufficient data or is vague

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Question 4

Question MCQ▾

A shorthand representation of a chemical reaction in terms of symbols and formulae of the substance involved is called as:

Choices

Choice (4)Response

a.

Chemical reaction

b.

Skeleton equation

c.

Balanced chemical equation

d.

Question does not provide sufficient data or is vague

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Question 5

Question MCQ▾

Hit and Trial method is also called as:

Choices

Choice (4)Response

a.

Trial- and – error method

b.

Inspection Method

c.

Material or mass balance

d.

All a., b. and c. are correct

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