Science Content-Basic Chemistry (CTET Paper-II Science): Questions 1 - 5 of 31

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Question number: 1

» Science Content » Basic Chemistry

Appeared in Year: 2012

MCQ▾

Question

When carbon dioxide is passed through clear limewater solution, it turns milky. The milky appearance of limewater is due to (Jan)

Choices

Choice (4) Response
a.

Presence of impurities in limewater

b.

Presence of insoluble calcium carbonate

c.

Presence of soluble calcium carbonate

d.

Curdling of milk due to lime in lime water

Question number: 2

» Science Content » Basic Chemistry

Appeared in Year: 2012

MCQ▾

Question

PET bottles and jars are commonly used for storing edible items. PET is a very familiar form of (Jan)

Choices

Choice (4) Response
a.

Polyester

b.

Polyamide

c.

Acrylic

d.

Rayon

Question number: 3

» Science Content » Basic Chemistry

MCQ▾

Question

Aqueous solution of which of the following oxides will change the color of red litmus to blue?

Choices

Choice (4) Response
a.

Sulphur dioxide

b.

Carbon dioxide

c.

Potassium oxide

d.

Phosphorus oxide

Question number: 4

» Science Content » Basic Chemistry

Appeared in Year: 2011

MCQ▾

Question

While diluting sulphuric acid, it is recommended that the acid should be added to water because (June)

Choices

Choice (4) Response
a.

Acid has strong affinity for water

b.

Acid may break the glass container

c.

Dilution of acid is highly exothermic

d.

Dilution of acid is highly endothermic

Question number: 5

» Science Content » Basic Chemistry

MCQ▾

Question

When sunlight flashes on the silver chloride it turns into grey color from white color, this is the example of

Choices

Choice (4) Response
a.

Combination reaction

b.

Displacement and redox reactions

c.

Double displacement reaction

d.

Decomposition reaction

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