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Subject :NSO    Class : Class 5

A burning candle was put in a glass jar containing a gas X and opening of glass jar was sealed with lid. The candle flame put off. The gas X could be ________.

ANitrogen
BOxygen
CCarbon dioxide
DBoth A and C


I think oxygen is essential for burning

Ans 1:

Class : Class 4
wwwwwwwwwhhhhhhhhhhhhhhhyyyyyyyyyyyyyyyyywhy shivaay?

Ans 2:

Class : Class 8
A

Ans 3:

Class : Class 7
i think its obviously b oxygen

Ans 4:

Class : Class 8
I think answer should be A, B and C - all of these.

Ans 5:

Class : Class 5
C

Ans 6:

Class : Class 4
shouldn't it be all of these cause it just anyways ran out of air

Ans 7:

Class : Class 7
The answer will be B cause oxygen is needed for burning

Ans 8:

Class : Class 5

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