MCQ
$IUPAC$ name of the ${(C{H_3})_2}CHCH{(C{H_3})_2}$ is
- A$1, 1, 2, 3-$ tetramethylethane
- B$1, 2-$ di-isopropylethane
- ✓$2, 3-$ dimethylbutane
- D$2, 3, 3-$ trimethylbutane
Methyl substituent is present at $2nd$ and $3rd$ carbon in parent chain so prefix would be $2,3$-dimethyl and the parent chain contains $4$ carbon therefore suffix would be butane.
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$(A)$ $BF _{3}$
$(B)$ $SiCl _{4}$
$(C)$ $PCl _{5}$
$(D)$ $SF _{6}$
(Given : Density of solution $=1.25 \mathrm{~g} \mathrm{~mL}^{-1}$, Molar mass in $\left.\mathrm{g} \mathrm{mol}^{-1}: \mathrm{Na}-23, \mathrm{Cl}-35.5\right)$