Inductive Effect

In which of the following molecules π-electron density in ring is minimum ?

Acrolein shows polarization of electrons which may be written as:

How many groups show $-\mathrm{I}$ effect?

The effect of benzene ring in compound (I) and (II), respectively, will be:

Which of the following is correct order of - $\mathrm{I}$ effect?

Which of the following is most readily hydrolysed by aqueous alkali ?

Which of the following is not true ?

Which is the strongest acid from the following?

The number of atoms or group of atoms showing +I effect of the following are-

$\mathrm{Zn}, {\mathrm{COO}}^{-}, \mathrm{R}-{\mathrm{S}}^{-}, \mathrm{I}, \mathrm{Be},$$-{\mathrm{SO}}_3\mathrm{H}, -\mathrm{C}(\mathrm{Et}{)}_3,$$-\mathrm{COOH}$

In the Dow's process:

What should be the group $\mathrm{X}$, to get the maximum rate of reaction.

How many atoms or group of atoms given below will exhibit +I effect?

$\mathrm{Zn},{\mathrm{COO}}^{-}, \mathrm{R}-{\mathrm{S}}^{-}, \mathrm{I}, \mathrm{Be},$$-{\mathrm{SO}}_3\mathrm{H}, -\mathrm{C}(\mathrm{Et}{)}_3,$$-COOH.$

Which of the following species is the most stable?

Acrolein shows polarization of electrons which may be written as:

The decreasing order of –I effect of the orbitals is:

$\mathrm{I}.\mathrm{sp} \mathrm{II}.{\mathrm{sp}}^{2 } \mathrm{III}.{\mathrm{sp}}^3$

The decreasing order of -I effect of the following is:

$$\begin{gathered} \mathrm{I}. \stackrel{\oplus }{\mathrm{N}}{\mathrm{H}}_3 \mathrm{II}. -{\mathrm{NO}}_2 \\ \mathrm{III}. -\mathrm{CN} \mathrm{IV}. -\mathrm{COOH} \end{gathered}$$

$\mathrm{X}\mathrm{ }=$ number of compounds having -I group directly attached to benzene.



Find the value of $\mathrm{X}$?

Arrange the following alcohols in order of reactivity towards gaseous HBr:

Which of the following is the strongest base?