Question

b) A carbon atom forrns a
bond with other atoms.
i) covalent
ii) ionic
iii) single
iv) double
Ans:
c) A fire extinguisher contains
powder
i) sodium chloride
ii) sodium nitride ii) sodium carbonate iv) se
Ans:
d) Anthracite contains about
of carbon.
i) 80%
ii) 85%
iii) 95%
iv) 100%
Ans:​

Answer 1

Answer:

(b) covalent bond

(c) sodium carbonate

Explanation:

I know the answer of only these

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Answer 2

Answer:

95%

Explanation:

Answer of questions d