General Organic Chemistry · Chemistry · TS EAMCET
MCQ (Single Correct Answer)
The condensed, bond line and complete formulae of $n$-butane are respectively.

Which purification method is generally used for a high boiling organic liquid compound which decompose below its boiling point?
$$ \text { Which of the following is not an aromatic species? } $$
Which of the following is a least stable carbocation?
$$ \text { Which of the following has lowest } \mathrm{p} K_a \text { value? } $$
Which one of the following represents hyperconjugation effect?
The increasing order of acidic strength of the following in aqueous solution is

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 electron displacement effect observed in the given structures is known as

$$ \begin{aligned} & -\mathrm{OCH}_2 \mathrm{CH}_3,-\mathrm{COCH}_3,-\mathrm{NHCOCH}_3, \\ & -\mathrm{COOCH}_3, \mathrm{SO}_3 \mathrm{H} \end{aligned} $$
The delocalisation of $\sigma$ electrons of C-H bond of an alkyl group with the $\pi$ electrons of benzene is observed in
$$ \text { Consider the following three resonance structures } $$
The correct order of their stabilities is
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 order of acid strength is
$$ \text { Which of the following lacks hyperconjugative stability? } $$
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


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. $\left(\mathrm{C}_6 \mathrm{H}_5\right)_2 \mathrm{CH}^{-}$
$$ \text { Identify the correct decreasing order of acidic strength. } $$
$$ \text { Hybridisations of carbon-2 in } P \text { and } Q \text { are respectively. } $$
