Match column I with column II and select the correct option from the codes given below. Column I (Amorphous forms of carbon) Column II (Uses) (P) Lamp black (i) For making electrodes for dry cell (Q) Bone charcoal (ii) In gas masks (R) Wood charcoal (iii) In extraction of metals (S) Gas carbon (iv) To remove colour from sugarcane juice (T) Coke (v) For making black shoe polish

P Q R S T (v) (iv) (ii) (i) (iii)

P Q R S T (i) (v) (iii) (ii) (iv)

P Q R S T (v) (iv) (ii) (iii) (i)

P Q R S T (ii) (iii) (iv) (i) (v)

Study the given flow chart carefully. Which of the following statements is correct?

X can be condensed back to coal.

Z starts burning when exposed to air.

E M B I B E

NSO Science Olympiad Workbook Grade 8>Chapter 5 - Coal and Petroleum>EXERCISES>Q 16

HARD

8th Foundation

IMPORTANT

Earn 100

Observe the figure of destructive distillation of coal. What are the three fractions X, Y and Z?

50% studentsanswered this correctly

Important Questions on Coal and Petroleum

HARD

8th Foundation

IMPORTANT

NSO Science Olympiad Workbook Grade 8>Chapter 5 - Coal and Petroleum>EXERCISES>Q 17

Match column I with column II and select the correct option from the codes given below.

Column I (Amorphous forms of carbon)		Column II (Uses)
(P)	Lamp black	(i)	For making electrodes for dry cell
(Q)	Bone charcoal	(ii)	In gas masks
(R)	Wood charcoal	(iii)	In extraction of metals
(S)	Gas carbon	(iv)	To remove colour from sugarcane juice
(T)	Coke	(v)	For making black shoe polish

HARD

8th Foundation

IMPORTANT

NSO Science Olympiad Workbook Grade 8>Chapter 5 - Coal and Petroleum>EXERCISES>Q 18

Study the given flow chart carefully.

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Which of the following statements is correct?

HARD

8th Foundation

IMPORTANT

NSO Science Olympiad Workbook Grade 8>Chapter 5 - Coal and Petroleum>EXERCISES>Q 19

The given figure shows the petroleum deposit inside the earth's crust.

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Which of the following is correct with respect to substance X?
I. X is chiefly made up of methane.
II. X is stored under low pressure.
III. X is a clean, non-polluting fuel.

HARD

8th Foundation

IMPORTANT

NSO Science Olympiad Workbook Grade 8>Chapter 5 - Coal and Petroleum>EXERCISES>Q 20

Fill in the blanks left in the classification of the fossil fuels.

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