MCQ
Find .....$ kJ/mol$ enthalpy of neutralisation of $NH_4OH$ and $HCN$ in aqueous solution if enthalpy of ionisation of $NH_4OH$ and $HCN$ are $7\ kJ/mol$ and $8\ kJ/mol$. also enthalpy of ionisation of $H_2O$ is $57.3\ kJ/mole$
  • A
    $-15$
  • $-42.3$
  • C
    $+1$
  • D
    $42.3$

Answer

Correct option: B.
$-42.3$
b

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