Which one of the carbocations from the following is most stable?

In the given structure, number of sp and ${\mathrm{sp}}^2$ hybridized carbon atoms present respectively are :

Identify correct statement/s : (A) $-{\mathrm{OCH}}_3$ and $-{\mathrm{NHCOCH}}_3$ are activating group. (B) $-\mathrm{CN}$ and -OH are meta directing group. (C) -CN and $-{\mathrm{SO}}_3\mathrm{H}$ are meta directing group. (D) Activating groups act as ortho - and para directing groups. (E) Halides are activating groups. Choose the correct answer from the options given below :

The correct order of stability of following carbocations is :

Match the LIST-I with LIST-II LIST-I LIST-II A. Carbocation I. Species that can supply a pair of electrons. B. C-Free radical II. Species that can receive a pair of electrons. C. Nucleophile III. sp2 hybridized carbon with empty p-orbital. D. Electrophile IV. sp2/sp3 hybridized carbon with one unpaired electron. Choose the correct answer from the options given below:

What is the correct IUPAC name of the compound?

Consider the following compound (X) The most stable and least stable carbon radicals, respectively, produced by homolytic cleavage of corresponding $\mathrm{C}-\mathrm{H}$ bond are :

Designate whether each of the following compounds is aromatic or not aromatic.

Which of the following is the correct IUPAC name of given organic compound (X)?

In 3,3-dimethylhex-1-en-4-yne, there are _________${\mathrm{sp}}^3$,_________${\mathrm{sp}}^2$ and_________ sp hybridised carbon atoms respectively.

$$\text{Identify the correct statements from the following. }$$ $$\text{Choose the correct answer from the options given below: }$$

The descending order of basicity of the following amines is : (D) ${\mathrm{CH}}_3{\mathrm{NH}}_2$ (E) ${\left({\mathrm{CH}}_3\right)}_2\mathrm{NH}$ Choose the correct answer from the options given below :

The number of optically active products obtained from the complete ozonolysis of the given compound is :

The IUPAC name of the following compound is:

In which pairs, the first ion is more stable than the second?

The correct order of basicity for the following molecules is :

$$\text{ What is the correct IUPAC name of }$$ ?

Given below are two statements : Statement I : Hyperconjugation is not a permanent effect. Statement II : In general, greater the number of alkyl groups attached to a positively charged Catom, greater is the hyperconjugation interaction and stabilization of the cation. In the light of the above statements, choose the correct answer from the options given below

If $C$ (diamond $)\to C$ (graphite) $+X\mathrm{kJ}{\mathrm{mol}}^{-1}$ C (diamond) $+{\mathrm{O}}_2(\mathrm{g})\to {\mathrm{CO}}_2(\mathrm{g})+\mathrm{Y}\mathrm{kJ}\mathrm{mol}{}^{-1}$ C (graphite) $+{\mathrm{O}}_2(\mathrm{g})\to {\mathrm{CO}}_2(\mathrm{g})+\mathrm{Z}\mathrm{kJ}{\mathrm{mol}}^{-1}$ at constant temperature. Then