Bhavit Bansal
from
Vardhman International School, Jaipur
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
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Ashmi Narkar
from
The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
I think answer should be A, B and C - all of these.
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tanmay chaudhry
from
BAL BHAVAN PUBLIC SCHOOL, New Delhi
Class : Class 4
wwwwwwwwwhhhhhhhhhhhhhhhyyyyyyyyyyyyyyyyywhy shivaay?
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Hitanshi Behera
from
Loyola School , Bhubaneswar
Class : Class 4
shouldn't it be all of these cause it just anyways ran out of air
Ans 7:
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Ans 8:
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Sayan Duary
from
Vidyasagar Shishu Niketan, Paschim Medinipur
Class : Class 7
The answer will be B cause oxygen is needed for burning