NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1964 - 1971 of 2028

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Question number: 1964

» 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: 1965

» 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: 1966

» Chemistry » Pollution of Air and Water

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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

Question number: 1967

» Chemistry » Synthetic Fibers and Plastics

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MCQ▾

Question

The monomer of polystyrene is?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1968

» Chemistry » Pollution of Air and Water

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MCQ▾

Question

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 number: 1969

» Chemistry » Pollution of Air and Water

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MCQ▾

Question

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

Choices

Choice (4) Response

a.

Chlorination

b.

Distillation

c.

Filtration

d.

Boiling

Question number: 1970

» Chemistry » Synthetic Fibers and Plastics

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MCQ▾

Question

Jute fibre is obtained from the ________part of jute plant?

Choices

Choice (4) Response

a.

Stem

b.

Seeds

c.

Roots

d.

Leaves

Question number: 1971

» Chemistry » Pollution of Air and Water

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MCQ▾

Question

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

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