NSO Level 1- Science Olympiad (SOF) Class 10: Questions 871 - 874 of 986

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Question number: 871

» Metals and Non - Metals

Edit
Match List-Ⅰ List-Ⅱ▾

Question

Match both the columns and mark the correct option from the codes given below:

List-Ⅰ (Column I)List-Ⅱ (Column II)

(A)

Graphite

(i)

Good conductor of electricity

(B)

Mercury

(ii)

Liquid at room temperature while rest are solids.

(C)

Sodium

(iii)

Law density

(D)

Diamond

(iv)

Hardest Substance

Choices

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

a.

  • (iii)
  • (i)
  • (iv)
  • (ii)

b.

  • (iii)
  • (ii)
  • (i)
  • (iv)

c.

  • (i)
  • (ii)
  • (iii)
  • (iv)

d.

  • (ii)
  • (iii)
  • (i)
  • (iv)

Question number: 872

» Acids, Bases and Salts

Edit
MCQ▾

Question

Which of the following is not a property of acid?

Choices

Choice (4)Response

a.

Feel Slippery

b.

Less than 7 pH

c.

Sour Taste

d.

Turn litmus Red

Question number: 873

» Metals and Non - Metals

Edit
MCQ▾

Question

Read the given statements and mark the correct option.

Statement 1: Metal react with oxygen to form basic oxides

Statement 2: Non-metal produces sonorous sound when hit with hammer.

Choices

Choice (4)Response

a.

Statements 1 and 2 are true.

b.

Statements 1 and 2 are wrong.

c.

Only Statement 2 is true.

d.

Only Statement 1 is true.

Question number: 874

» Magnetic Effects of Electric Current

Edit
MCQ▾

Question

Choose the correct option. Sources of magnetic fields are

(i) Natural and artificial magnets

(ii) Electromagnets

(iii) Alloy

(iv) Earth

Choices

Choice (4)Response

a.

(ii), (iii) and (iv)

b.

(i), (ii), (iii) and (iv)

c.

(i), (ii) and (iii)

d.

(i), (ii) and (iv)

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