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Agustya vaid from Somerville school vasundhara enclave, Delhi
Subject :NSO    Class : Class 6

Manisha took some vinegar in a test tube and added some baking powder to it. Then she lit a matchstick and brought it near the mouth of the test tube. The flame of matchstick got extinguished.
Which of the following is correct conclusion regarding the given experiment?

A Carbon dioxide gas does not support burning.
B Air contains carbon dioxide.
C Oxygen gas present in the air is necessary for burning.
D Oxygen gas can extinguish fire.


Ans 1:

malhar thorve from city internqtional school, satara road, pune
Class : Class 6
it can also be c because oxygen gas present in the air is necessary for burning

Ans 2:

Hitarth from Mushtifund High School , Goa
Class : Class 5
A

Ans 3:

Arav Gupta from Delhi Public School Gurgaon, Gurgaon
Class : Class 8
But it can also be c

Ans 4:

Shriya from VIBGYOR High, Bangalore
Class : Class 10
A: Carbon dioxide gas does not support burning.

Ans 5:

Gargi from DPS school north, Bangalore
Class : Class 4

Ans 6:

Shivansh Pant from National Center For Excellence, Bangalore
Class : Class 10
A because co2 does not support burning

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