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Subject :NSO    Class : Class 8

Four statements regarding natural gas are given below.
I. It has a very low calorific value.
II. On strong heating, it releases hydrogen gas.
III. Natural gas is made up of methane only.
IV. Natural gas is a clean fuel.
Which of the following pairs of statements is not correct?
AI and II
BI and III
CII and IV
DI and IV

Ans 1:

Class : Class 8

Ans 2:

Class : Class 7
I guess b since H2 can be obtained

Ans 3:

Class : Class 9
it should be A

Ans 4:

Class : Class 9

Ans 5:

Class : Class 9
correct answer (A). natural gas is a clean fuel.

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