Chemistry [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 150 - 156 of 209

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Question 150

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Question

MCQ▾

The monomer of polystyrene is?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 151

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Question

MCQ▾

In which of the following catalytic converters are used?

Choices

Choice (4)Response

a.

Dairy farms

b.

Automobiles

c.

Poultry Farms

d.

Wind mills

Question 152

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Question

MCQ▾

Name the water purification method that does not kill the microorganisms?

Choices

Choice (4)Response

a.

Chlorination

b.

Distillation

c.

Filtration

d.

Boiling

Question 153

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Question

MCQ▾

Jute fibre is obtained from the ________part of jute plant?

Choices

Choice (4)Response

a.

Stem

b.

Seeds

c.

Roots

d.

Leaves

Question 154

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Question

MCQ▾

If the global warming or greenhouse effect remains unchecked, it alter?

Choices

Choice (4)Response

a.

Sea levels

b.

Rainfall

c.

Ozone Layer

d.

All a. , b. and c. are correct

Question 155

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Question

MCQ▾

Which one of the following include the modes of controlling pollution in large cities?

Choices

Choice (4)Response

a.

Less use of insecticides & fertilizers

b.

Proper disposal of organic wastes

c.

Shifting of industries out of the residential area

d.

All a. , b. and c. are correct

Question 156

Edit

Question

MCQ▾

Which of the following is a biodegradable polymer?

Choices

Choice (4)Response

a.

Nylon

b.

Polythene

c.

PVC

d.

Cellulose