NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1936 - 1944 of 2000

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Question number: 1936

» Chemistry » The Nature of Matter

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MCQ▾

Question

Ice-cream belongs to which type of category?

Choices

Choice (4)Response

a.

Emulsion

b.

Suspension

c.

Element

d.

Solution

Question number: 1937

» Chemistry » Structure of the Atom

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MCQ▾

Question

Which of the following pairs are known as isotopes?

Choices

Choice (4)Response

a.

b.

c.

Diamond and graphite

d.

Question number: 1938

» Chemistry » Matter

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MCQ▾

Question

Which of the following is the freezing point of pure water?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1939

» Chemistry » Atoms & Molecules

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MCQ▾

Question

Calculate the mass of gram atom of oxygen?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1940

» Chemistry » Structure of the Atom

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MCQ▾

Question

Positive ions are formed from neutral atoms by the loss of?

Choices

Choice (4)Response

a.

Nuclear charge

b.

Protons

c.

Electrons

d.

Neutrons

Question number: 1941

» Chemistry » Matter

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MCQ▾

Question

Select the metal from the following, which is not a solid at room temperature?

Choices

Choice (4)Response

a.

Mercury

b.

Aluminium

c.

Iron

d.

Steel

Question number: 1942

» Chemistry » The Nature of Matter

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MCQ▾

Question

________Forms colloidal solution in water?

Choices

Choice (4)Response

a.

Starch

b.

Salt

c.

Glucose

d.

Barium nitrate

Question number: 1943

» Chemistry » Structure of the Atom

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MCQ▾

Question

Sodium ion is isoelectronic with?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1944

» Chemistry » Structure of the Atom

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MCQ▾

Question

Assume that an element has electrons, protons and neutrons, then what is the mass number of the element?

Choices

Choice (4)Response

a.

10

b.

12

c.

22

d.

32

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