Embibe Experts Solutions for Chapter: Organic Chemistry- Some Basic Principles and Techniques, Exercise 3: EXERCISE-3

What is the percentage of nitrogen in an organic compound $1 \mathrm{g}$ of which gave by Dumas method $82.1 \mathrm{cc}$ of nitrogen collected over water at $127°\mathrm{C}$ and at a barometric pressure of $774.5 \mathrm{mm}?$ (aqueous tension of water at $127°\mathrm{C}$ is $\left.14.5 \mathrm{mm}\right)$

Amongst the following, the total number of compounds soluble in aquesous ${\mathrm{NaHCO}}_3$ is:

How many of the following compounds contains higher $\mathrm{C}-\mathrm{H}$ bond energy than $\mathrm{C}-\mathrm{H}$ bond in cychlohexane?

The reason for resonance, is delocalisation of $\mathrm{\pi }$-electrons.

The dipole moment of ${\mathrm{CH}}_3 \mathrm{F}$ is greater than that of ${\mathrm{CH}}_3\mathrm{Cl}.$

${\mathrm{sp}}^2$ hybrid orbitals have equal $\mathrm{s}$- and $\mathrm{p}$-character.

How many $1,2$-shifts are involved during the course of following reaction:

How many following carbocation undergo re-arrangement-

(a) ${\mathrm{CH}}_3{\mathrm{CH}}_2{{\mathrm{CH}}_2}^{+}$

(b) ${\left({\mathrm{CH}}_3\right)}_2\mathrm{CH}\stackrel{+}{\mathrm{CH}}{\mathrm{CH}}_3$

(c) ${\left({\mathrm{CH}}_3\right)}_3\mathrm{C}\stackrel{+}{\mathrm{CH}}{\mathrm{CH}}_3$

(d) ${\left({\mathrm{CH}}_3{\mathrm{CH}}_2\right)}_3{{\mathrm{CCH}}_2}^{+}$

(e) 

(f) 

(g) 

(h)