MCQ
What is $IUPAC$ name of following compound ?


- A$5-$ methyl cyclohexene
- ✓$4-$ methyl cyclohexene
- C$1-$ methyl $-3-$ cyclohexene
- DNone


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${(C{H_3} - C{H_2})_2}CuLi\xrightarrow{{C{H_3} - Cl}}\Pr oduct$
$(A)$ In $B _{2} H _{6}$, all $B - H$ bonds are equivalent.
$(B)$ In $B _{2} H _{6}$ there are four $3-$centre$-2-$electron bonds.
$(C)$ $B _{2} H _{6}$ is a Lewis acid.
$(D)$ $B _{2} H _{6}$ can be synthesized form both $BF _{3}$ and $NaBH _{4}$.
$(E)$ $B _{2} H _{6}$ is a planar molecule.
Choose the most appropriate answer from the options given below..... .
