NSO Level 1- Science Olympiad (SOF) Class 8: Questions 145 - 149 of 1076

Access detailed explanations (illustrated with images and videos) to 1076 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 450.00 or

How to register?

Question number: 145

» Coal and Petroleum

Edit
MCQ▾

Question

There are some statements given below.

I. In fractional distillation process, substances with high boiling points condense at the top and substances with low boiling points condense at the bottom.

II. Petrochemicals are used in the manufacture of detergents, fibres, polythene and other man made plastics.

III. Coal tar is used to manufacture of graphite and calcium carbonate.

IV. Paraffin waxes are derived from petroleum

Which of the following statements are incorrect and mark the appropriate option?

Choices

Choice (4) Response

a.

III and IV only

b.

I and III only

c.

II and IV only

d.

II and III only

Question number: 146

» Coal and Petroleum

Edit
MCQ▾

Question

In which of the following label parts, natural gas is present in the earth?

Image showing Earth surface.

Image Showing Earth Surface.

Image showing Earth surface.

Choices

Choice (4) Response

a.

S

b.

Q

c.

R

d.

P

Question number: 147

» Coal and Petroleum

Edit
MCQ▾

Question

Refining is

Choices

Choice (4) Response

a.

Separation of various fractions of petroleum

b.

Extracting petroleum gas

c.

Heating of coal

d.

Sedimentation of fossil fuel

Question number: 148

» Coal and Petroleum

Edit
MCQ▾

Question

Which of the following was used in railway engines to produce steam to run the engine in olden years and now used in thermal power production?

Choices

Choice (4) Response

a.

Coal

b.

Coke

c.

Coal gas

d.

Coal tar

Question number: 149

» Coal and Petroleum

Edit
Match List-Ⅰ List-Ⅱ▾

Question

Match the column I with column II and select the correct answer from the codes given below:

List-Ⅰ (Column I) List-Ⅱ (Column II)

(A)

Coal

(i)

Is a Fossil fuels

(B)

Coke is

(ii)

Used to manufacture Explosives

(C)

Coal tar

(iii)

Porous solid

Choices

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

a.

  • (ii)
  • (i)
  • (iii)

b.

  • (i)
  • (ii)
  • (iii)

c.

  • (i)
  • (iii)
  • (ii)

d.

All of the above

Developed by: