MCQ
Which statement is true for cyclohexane
- AIt has two possible isomers
- BIt has three conformations
- CBoat conformation is most stable
- ✓Chair and boat conformations differ in energy by $44$ $kJ/mol$

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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$
In the above reaction, the structural formula of $(A), "X"$ and $"Y"$ respectively are :