13. HYDROCARBONS
Hydrocarbons

17514 Which of the following has maximum stability

1 \(\mathop C\limits^ + {H_3}\)
2 \(C{H_3} - \mathop {\mathop {\mathop C\limits_ + }\limits^| }\limits^H - H\)
3 \(C{H_3} - \mathop {\mathop {\mathop C\limits_ + }\limits^| }\limits^H - C{H_3}\)
4 $\begin{array}{*{20}{c}}
  {\,\,\,\,\,C{H_3}} \\ 
  | \\ 
  {\mathop {C{H_3} - C - C{H_3}}\limits_ +  } 
\end{array}$
Hydrocarbons

17515 The most volatile compound is

1 \(2, 2-\) dimethyl propane
2 \(2-\) methyl butane
3 Isobutane
4 \(n-\) pentane
Hydrocarbons

17516 In Wurtz reaction, the reagent used is

1 \(Na\)
2 \(Na\) / liquid \(NH_3\)
3 \(Na\) / Dry ether
4 \(Na\) / Dry alcohol
Hydrocarbons

17517 Which of the following has highest octane number

1 \(n-\)  hexane
2 \(n - \) heptane
3 \(n-\)  pentane
4 \(2, 2, 4-\)  trimethyl pentane
Hydrocarbons

17514 Which of the following has maximum stability

1 \(\mathop C\limits^ + {H_3}\)
2 \(C{H_3} - \mathop {\mathop {\mathop C\limits_ + }\limits^| }\limits^H - H\)
3 \(C{H_3} - \mathop {\mathop {\mathop C\limits_ + }\limits^| }\limits^H - C{H_3}\)
4 $\begin{array}{*{20}{c}}
  {\,\,\,\,\,C{H_3}} \\ 
  | \\ 
  {\mathop {C{H_3} - C - C{H_3}}\limits_ +  } 
\end{array}$
Hydrocarbons

17515 The most volatile compound is

1 \(2, 2-\) dimethyl propane
2 \(2-\) methyl butane
3 Isobutane
4 \(n-\) pentane
Hydrocarbons

17516 In Wurtz reaction, the reagent used is

1 \(Na\)
2 \(Na\) / liquid \(NH_3\)
3 \(Na\) / Dry ether
4 \(Na\) / Dry alcohol
Hydrocarbons

17517 Which of the following has highest octane number

1 \(n-\)  hexane
2 \(n - \) heptane
3 \(n-\)  pentane
4 \(2, 2, 4-\)  trimethyl pentane
Hydrocarbons

17514 Which of the following has maximum stability

1 \(\mathop C\limits^ + {H_3}\)
2 \(C{H_3} - \mathop {\mathop {\mathop C\limits_ + }\limits^| }\limits^H - H\)
3 \(C{H_3} - \mathop {\mathop {\mathop C\limits_ + }\limits^| }\limits^H - C{H_3}\)
4 $\begin{array}{*{20}{c}}
  {\,\,\,\,\,C{H_3}} \\ 
  | \\ 
  {\mathop {C{H_3} - C - C{H_3}}\limits_ +  } 
\end{array}$
Hydrocarbons

17515 The most volatile compound is

1 \(2, 2-\) dimethyl propane
2 \(2-\) methyl butane
3 Isobutane
4 \(n-\) pentane
Hydrocarbons

17516 In Wurtz reaction, the reagent used is

1 \(Na\)
2 \(Na\) / liquid \(NH_3\)
3 \(Na\) / Dry ether
4 \(Na\) / Dry alcohol
Hydrocarbons

17517 Which of the following has highest octane number

1 \(n-\)  hexane
2 \(n - \) heptane
3 \(n-\)  pentane
4 \(2, 2, 4-\)  trimethyl pentane
Hydrocarbons

17514 Which of the following has maximum stability

1 \(\mathop C\limits^ + {H_3}\)
2 \(C{H_3} - \mathop {\mathop {\mathop C\limits_ + }\limits^| }\limits^H - H\)
3 \(C{H_3} - \mathop {\mathop {\mathop C\limits_ + }\limits^| }\limits^H - C{H_3}\)
4 $\begin{array}{*{20}{c}}
  {\,\,\,\,\,C{H_3}} \\ 
  | \\ 
  {\mathop {C{H_3} - C - C{H_3}}\limits_ +  } 
\end{array}$
Hydrocarbons

17515 The most volatile compound is

1 \(2, 2-\) dimethyl propane
2 \(2-\) methyl butane
3 Isobutane
4 \(n-\) pentane
Hydrocarbons

17516 In Wurtz reaction, the reagent used is

1 \(Na\)
2 \(Na\) / liquid \(NH_3\)
3 \(Na\) / Dry ether
4 \(Na\) / Dry alcohol
Hydrocarbons

17517 Which of the following has highest octane number

1 \(n-\)  hexane
2 \(n - \) heptane
3 \(n-\)  pentane
4 \(2, 2, 4-\)  trimethyl pentane