Question

Match the following
$\begin{array}{cc}\text{Compound}& \text{Boiling point}\\ \text{(A) butan-1-ol}& \text{(P)}108{}^{\circ }C\\ \text{(B) butan-2-ol}& \text{(Q)}117{}^{\circ }C\\ \text{(C) 2-methyl propan-1-ol}& \text{(R)}82{}^{\circ }C\\ \text{(D) 2-methyl propan-2-ol}& \text{(S)}100{}^{\circ }C\end{array}$

• A. $A\to Q;B\to S;C\to P;D\to R$
• B. $A\to R;B\to Q;C\to S;D\to P$
• C. $A\to P;B\to R;C\to Q;D\to S$
• D. $A\to S;B\to Q;C\to R;D\to P$

Answer 1

The correct option is A $A\to Q;B\to S;C\to P;D\to R$

Branching in molecules decreases the surface area thereby decreasing the attractive force between individual molecules. As a result, the boiling point decreases.