NCERT Class 10 Science [NCERT Based General Studies (GS)]: Questions 1 - 6 of 647

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Question 1

NCERT Class 10 ScienceLife Processes[Respiration]Human Respiratory System

Question MCQ▾

In human respiratory system air is warmed and moistened in:

Choices

Choice (4)Response

a.

Nostrils

b.

Nasal cavity

c.

Pharynx

d.

Question does not provide sufficient data or is vague

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Question 2

NCERT Class 10 ScienceChemical Reactions and Equation[Oxidation Reactions]Corrosion

Question MCQ▾

Slow destruction of metal due to their interaction with the environment is called as:

Choices

Choice (4)Response

a.

Decomposition

b.

Corrosion

c.

Rancidity

d.

Precipitation

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Question 3

NCERT Class 10 ScienceChemical Reactions and Equation[Chemical Equations]Writing Symbols of Physical States

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 4

NCERT Class 10 ScienceAcids, Bases and Salts[Salts]Chemicals from Common Salt

Question MCQ▾

Common salt acts as a raw material for number of chemicals such as:

Choices

Choice (4)Response

a.

Bleaching Powder

b.

Sodium Hydroxide

c.

Sodium Hydrogen carbonate

AND

Sodium carbonate

d.

All c., a. and b. are correct

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Question 5

NCERT Class 10 ScienceChemical Reactions and Equation[Chemical Equations]Writing Symbols of Physical States

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 6

NCERT Class 10 ScienceAcids, Bases and Salts[Chemical Properties of Acids and Bases]Reaction of Metallic Oxides with Acids

Question MCQ▾

When dilute Hydrochloric acid added to copper oxide in a beaker:

Choices

Choice (4)Response

a.

Colour of solution becomes blue green

b.

Copper II chloride formed in reaction

c.

Copper oxide dissolves

d.

All a., b. and c. are correct

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