MCQ
Diazo-coupling is useful to prepare some
- ✓Dyes
- BProteins
- CPesticides
- DVitamins

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Calculate the amount of energy required to convert $110\, mg$ of $'X'$ atom in gaseous state into $X^+$ ion .................... $\mathrm{kJ}$ (Atomic wt. for $X = 7\, g/mol$)
$A$. Phenol $B$. $p -$ Cresol
$C$. $m-$ Nitrophenol $D$. $p-$ Nitrophenol is