Chemistry [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 143 - 149 of 209

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Question number: 143

» Chemistry » Pollution of Air and Water

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MCQ▾

Question

Monument of marble can be damaged by?

Choices

Choice (4)Response

a.

Pesticide pollution

b.

Pollution

c.

Dust Particles

d.

Pollution

Question number: 144

» Chemistry » Pollution of Air and Water

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MCQ▾

Question

What is the compound A which in known to be a particulate?

Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

Question number: 145

» Chemistry » Pollution of Air and Water

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MCQ▾

Question

Which of the following gas is associated with greenhouse effect?

Choices

Choice (4)Response

a.

Oxygen

b.

Carbon dioxide

c.

Sulphur dioxide

d.

Nitrogen dioxide

Question number: 146

» Chemistry » Synthetic Fibers and Plastics

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Question

Which of the following are exact properties of nylon?

Choices

Choice (4)Response

a.

Transparent, light and easy to wash

b.

Soft, strong and light

c.

Strong, clastic and light

d.

Hard, inexpensive and strong

Question number: 147

» Chemistry » Synthetic Fibers and Plastics

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Question

Which of following plastic product that can be remoulded?

Choices

Choice (4)Response

a.

Bakelite

b.

Polycot

c.

Polythene

d.

Melamine

Question number: 148

» Chemistry » Synthetic Fibers and Plastics

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MCQ▾

Question

Which of the following part of cottonplant given cotton balls?

Choices

Choice (4)Response

a.

Flower

b.

Seed

c.

Leaf

d.

Fruit

Question number: 149

» Chemistry » Pollution of Air and Water

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MCQ▾

Question

Inhalation of carbon monoxide which is emitted by automobiles prevents oxygen transport to body tissues by?

Choices

Choice (4)Response

a.

Forming a stable compound with haemoglobin

b.

Destroying haemoglobin

c.

Obstructing the reaction of oxygen with haemoglobin

d.

Changing oxygen

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