NSO Level 1- Science Olympiad (SOF) Class 8: Questions 138 - 140 of 1175
Access detailed explanations (illustrated with images and videos) to 1175 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!
View Sample Explanation or View Features.
Rs. 450.00 -OR-
How to register? Already Subscribed?
Question 138
Question
Match List-Ⅰ List-Ⅱ▾Match the column I with column II and select the correct option from the codes given below;
| List-Ⅰ (Column I) | List-Ⅱ (Column II) |
|---|---|
(A) Asphalt | (i) Power generation |
(B) Paraffin wax | (ii) Dry cleaning fluid |
(C) CNG | (iii) Matchsticks |
(D) Gasoline | (iv) Making road |
Choices
| Choice (4) | Response | |
|---|---|---|
| ||
a. |
| |
b. |
| |
c. |
| |
d. |
| |
Question 139
Question
MCQ▾One word answers are given for few statements. Mark the answer which is not correct.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Coal tar – obtained during the processing of coal to get coke. | |
b. | The slow chemical process of the conversion of wood into coal – Carbonisation. | |
c. | Conservation – not wasting the resources and also maintaining their quality. | |
d. | Resources which are once used up cannot be replaced n a reasonable period of time – Non-renewable resources. | |
Question 140
Question
MCQ▾Which of the following statements is not true about Natural gas?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | CNG is supplied to homes and factories through pipes and directly used as a fuel | |
b. | Natural gas is stored under high pressure as compressed natural gas (CNG) . | |
c. | CNG is used as a clean fuel for buses, cars and autorikshaws. | |
d. | Natural gas is a source of oxygen gas needed in fertilizer industry. | |