Q36. The correct sequence of acidic strength of the following aliphatic acids in their decreasing order is:\\
$\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { COOH } , \mathrm { CH } _ { 3 } \mathrm { COOH } , \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { COOH } , \mathrm { HCOOH }$\\
(1) $\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { COOH } > \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { COOH } > \mathrm { CH } _ { 3 } \mathrm { COOH } > \mathrm { HCOOH }$\\
(2) $\mathrm { CH } _ { 3 } \mathrm { COOH } > \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { COOH } > \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { COOH } > \mathrm { HCOOH }$\\
(3) $\mathrm { HCOOH } > \mathrm { CH } _ { 3 } \mathrm { COOH } > \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { COOH } > \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { COOH }$\\
(4) $\mathrm { HCOOH } > \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { COOH } > \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { COOH } > \mathrm { CH } _ { 3 } \mathrm { COOH }$
Q37.\\
IUPAC name of following hydrocarbon $( X )$ is :\\
\includegraphics[alt={}]{smile-27b8c234366527e7d7d271d5968819f38a89076c}\\
(1) 2-Ethyl-3,6-dimethylheptane\\
(2) 2,5,6-Trimethyloctane\\
(3) 3,4,7-Trimethyloctane\\
(4) 2-Ethyl-2,6-diethylheptane