NSO Level 1- Science Olympiad (SOF) Class 10: Questions 934 - 938 of 986

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Question 934

Question

Match List-Ⅰ List-Ⅱ▾

Match both the column and mark the correct option from the code given below.

List-Ⅰ (Column I)List-Ⅱ (Column II)
(A)

Crystalline

(i)

Alkaline

(B)

Amorphous

(ii)

Charcoal

(C)

Oxidation

(iii)

Graphite

(D)

Combustion

(iv)

Carbon Dioxide

Choices

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

a.

  • (i)
  • (iii)
  • (ii)
  • (iv)

b.

  • (iii)
  • (iv)
  • (i)
  • (ii)

c.

  • (i)
  • (iii)
  • (iv)
  • (ii)

d.

  • (iii)
  • (ii)
  • (i)
  • (iv)

Question 935

Question

MCQ▾

Which is incorrect for advantages of biogas?

Choices

Choice (4)Response

a.

No smoke

b.

All are correct

c.

No ash

d.

Low supply of heat

Question 936

Question

MCQ▾

Which is not an example of native metal?

Choices

Choice (4)Response

a.

Sulphur

b.

Platinum

c.

Carbone

d.

Both a. and c. are correct

Question 937

Question

MCQ▾

A drop of liquid sample was put on the pH paper. The colour of the pH paper turned red. The liquid sample could be that of

Choices

Choice (4)Response

a.

Dilute hydrochloric acid

b.

Distilled water

c.

Lemon juice

d.

Sodium bicarbonate

Question 938

Question

Match List-Ⅰ List-Ⅱ▾

Match the column I and column II and the select the correct option from the coded given below:

List-Ⅰ (Column I)List-Ⅱ (Column II)
(A)

Spherical Mirror

(i)

Rough surface

(B)

Regular reflection

(ii)

Shiny or polished surface

(C)

Irregular reflection

(iii)

Curved reflecting surface

(D)

Plane Mirror

(iv)

Straight and flat surface

Choices

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

a.

  • (iii)
  • (ii)
  • (i)
  • (iv)

b.

  • (i)
  • (iii)
  • (ii)
  • (iv)

c.

  • (ii)
  • (iii)
  • (iv)
  • (i)

d.

  • (iv)
  • (i)
  • (ii)
  • (iii)

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