MEDIUM
8th CBSE
IMPORTANT
Earn 100

Which of the following is regarded as the hardest coal?

49.32% studentsanswered this correctly

Important Questions on Coal and Petroleum

MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 5 - Coal and Petroleum>ASSESSMENT ZONE>Q A
Which of the following gas is formed when coal is heated in the absence of air?
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 5 - Coal and Petroleum>ASSESSMENT ZONE>Q A
Which of the following is used to manufacture coal tar and coke?
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 5 - Coal and Petroleum>ASSESSMENT ZONE>Q A
Which of the following is used to manufacture explosives and perfumes?
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 5 - Coal and Petroleum>ASSESSMENT ZONE>Q A
Which of the following is used in LPG cylinders?
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 5 - Coal and Petroleum>ASSESSMENT ZONE>Q A
Which of the following gas is not released during burning of the fossil fuels?
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 5 - Coal and Petroleum>ASSESSMENT ZONE>Q A
Petroleum and natural gas are formed in -
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 5 - Coal and Petroleum>ASSESSMENT ZONE>Q B
_____ refer to the things that exist freely in nature for human use.
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 5 - Coal and Petroleum>ASSESSMENT ZONE>Q B
During the _____ period, Earth was covered with swampy forests. (Cambrian/Devonian/Carboniferous)