Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry

Why does carbon dioxide work as a fire-extinguisher?

1

It is heavier than oxygen.

2

It is lighter than oxygen.

3

It is more flammable than oxygen.

4

More than one of the above

5

None of the above

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