NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1934 - 1940 of 2000

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Question number: 1934

» Chemistry » Structure of the Atom

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MCQ▾

Question

What does the valency ‘say’ about?

Choices

Choice (4) Response

a.

The combining capacity of an element

b.

The atomicity of an element

c.

The oxidation number of an element

d.

Question does not provide sufficient data or is vague

Question number: 1935

» Biology » Improvement in Food Resources

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Match List-Ⅰ List-Ⅱ▾

Question

Match the following.

List-Ⅰ (Column I) List-Ⅱ (Column II)

(A)

Agar-agar gel

(i)

Production of alcohol

(B)

Fermentation

(ii)

Undifferentiated mass of cells

(C)

Horticulture

(iii)

Used to grow callus

(D)

Callus

(iv)

Recreational values

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iv)
  • (i)
  • (ii)
  • (iii)

b.

  • (iii)
  • (i)
  • (iv)
  • (ii)

c.

  • (ii)
  • (iii)
  • (iv)
  • (i)

d.

  • (ii)
  • (iv)
  • (iii)
  • (i)

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

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