General Organic Chemistry

Which purification method is generally used for a high boiling organic liquid compound which decompose below its boiling point?

The condensed, bond line and complete formulae of $n$-butane are respectively.

\(\text { Which of the following is not an aromatic species? }\)

\(\text { Which of the following has lowest } \mathrm{p} K_a \text { value? }\)

Which of the following is a least stable carbocation?

The increasing order of acidic strength of the following in aqueous solution is

Which one of the following represents hyperconjugation effect?

The electron displacement effect observed in the given structures is known as

The number of activating and deactivating groups of the following are respectively $$ \begin{aligned} & -\mathrm{OCH}_2 \mathrm{CH}_3,-\mathrm{COCH}_3,-\mathrm{NHCOCH}_3, \\ & -\mathrm{COOCH}_3, \mathrm{SO}_3 \mathrm{H} \end{aligned} $$

Consider the following carbocations.

Arrange the above carbocations in the order of decreasing stability

What is the % carbon in the product ' $Z$ ' formed in the reaction?

Arrange the following in the increasing order of pKa values

The delocalisation of $\sigma$ electrons of C-H bond of an alkyl group with the $\pi$ electrons of benzene is observed in

In which of the following hyperconjugation is not possible?

\(\text { Consider the following three resonance structures }\)

The correct order of their stabilities is

\(\text { Which of the following lacks hyperconjugative stability? }\)

From the following compounds, the ones which contain both $s p$ and $s p^2$ hybridised carbons are

Among the compounds
(i) $\mathrm{H}-\mathrm{C} \equiv \mathrm{C}-\mathrm{COOH}$
(ii) $\mathrm{CH}_2=\mathrm{CH}-\mathrm{COOH}$
(iii) $\mathrm{CH}_3-\mathrm{CH}_2 \mathrm{COOH}$ and
(iv) $\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{OH}$
The correct ...

For the following radicals, the correct order of their stability is

The correct order of the stability of the following compounds based upon hyperconjugation is

The order of circled $\mathrm{C}-\mathrm{H}$ bond dissociation energy in the following compound is

\(\text { Identify the correct decreasing order of acidic strength. }\)

The correct order of the relative stability of the following carbanions is
I. $\mathrm{HC} \equiv \mathrm{C}^{-}$
II. $\mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_2^{-}$
III. $\mathrm{H}_2 \mathrm{C}=\mathrm{CH}^{-}$
IV. $\left(\mathrm{C}_6 \math...

\(\text { Hybridisations of carbon-2 in } P \text { and } Q \text { are respectively. }\)