MCQ
The molecular formula of sulphur is
- A$S$
- B${S_2}$
- C${S_4}$
- ✓${S_8}$
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$(a)$ $PhCOOH$
$(B)$ $o-NO_2C_6H_4COOH$
$(C)$ $p-NO_2C_6H_4COOH$
$(D)$ $m-NO_2C_6H_4COOH$
