BD Merit - Freelancing, BCS, Bank, Primary, Admission, NTRCA

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1.

A. $H_{2} S a n d C O_{2}$
B. $H_{2} S a n d C O_{2}$
C. $H_{2} S a n d C O_{2}$
D. $H_{2} S a n d C O_{2}$

Answer: Option C

Explanation:

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