MCQ
Identify $X$ and $Y$


- ABoth $X$ and $Y$ are

- BBoth $X$ and $Y$ are

- C

- ✓







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$H_2 + F_2 \longrightarrow 2HF$
given that
Bond energy of $H-H$ bond $= 434\, kJ/mol$
Bond energy of $F-F$ bond $= 158\, kJ/mol$
Bond energy of $H-F$ bond $= 565\, kJ/mol$
.....$ kJ$