Question 1: Palette 1/22

TS-EAMCET 2025 MCQ

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

A

II, I, III

B

I, II, III

C

I, III, II

D

II, III, I

Question 2: Palette 2/22

TS-EAMCET 2025 MCQ

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

A

Distillation

B

Distillation under reduced pressure

C

Steam distillation

D

Fractional distillation

Question 3: Palette 3/22

TS-EAMCET 2025 MCQ

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

A

B

C

D

Question 4: Palette 4/22

TS-EAMCET 2025 MCQ

Which of the following is a least stable carbocation?

A

$\mathrm{CH}_3-\stackrel{\oplus}{\mathrm{C}} \mathrm{H}_2$

B

$\mathrm{CH}_2=\stackrel{\oplus}{\mathrm{C}} \mathrm{H}$

C

$ \mathrm{CH}_2=\mathrm{CH}\stackrel{\oplus}{-} \mathrm{CH}_2 $

D

$\mathrm{C}_6 \mathrm{H}_5-\stackrel{\oplus}{\mathrm{C}} \mathrm{H}_2$

Question 5: Palette 5/22

TS-EAMCET 2025 MCQ

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

A

B

C

D

Question 6: Palette 6/22

TS-EAMCET 2025 MCQ

Which one of the following represents hyperconjugation effect?

A

B

C

D

Question 7: Palette 7/22

TS-EAMCET 2025 MCQ

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

A

IV $<$ II $<$ III $<$ I

B

I $<$ III $<$ II $<$ IV

C

I $<$ II $<$ III $<$ IV

D

III $<$ I $<$ II $<$ IV

Question 8: Palette 8/22

TS-EAMCET 2024 MCQ

Consider the following carbocations.

Arrange the above carbocations in the order of decreasing stability

A

I $ > $ III $ > $ IV $ > $ II $ > $ V

B

V $ > $ II $ > $ IV $ > $ III $ > $ I

C

V $ > $ II $ > $ III $ > $ I $ > $ IV

D

II $ > $ III $ > $ IV $ > $ V $ > $ I

Question 9: Palette 9/22

TS-EAMCET 2024 MCQ

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

A

40

B

50

C

70

D

60

Question 10: Palette 10/22

TS-EAMCET 2024 MCQ

Arrange the following in the increasing order of pKa values

A

III $<$ IV $<$ II $<$ I

B

II $<$ III $<$ IV $<$ I

C

IV $<$ II $<$ I $<$ III

D

IV $<$ III $<$ II $<$ I

Question 11: Palette 11/22

TS-EAMCET 2024 MCQ

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

A

$+R$ effect

B

Electromeric effect

C

$-R$ effect

D

-1 effect

Question 12: Palette 12/22

TS-EAMCET 2024 MCQ

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} $

A

2,3

B

3,2

C

1,4

D

4, 1

Question 13: Palette 13/22

TS-EAMCET 2023 MCQ

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

A

inductive effect

B

hyperconjugation effect

C

resonance effect

D

electromeric effect

Question 14: Palette 14/22

TS-EAMCET 2023 MCQ

$ \text { Consider the following three resonance structures } $

The correct order of their stabilities is

A

II $>$ I $>$ III

B

I $>$ II $>$ III

C

III $>$ I $>$ II

D

III $>$ II $>$ I

Question 15: Palette 15/22

TS-EAMCET 2023 MCQ

In which of the following hyperconjugation is not possible?

A

B

C

D

Question 16: Palette 16/22

TS-EAMCET 2022 MCQ

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

A

I, II and III

B

II, III and IV

C

I, III and VI

D

I, III and V

Question 17: Palette 17/22

TS-EAMCET 2022 MCQ

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

A

(i) $>$ (ii) $>$ (iii) $>$ (iv)

B

(iv) $>$ (iii) $>$ (ii) $>$ (i)

C

(ii) $>$ (i) $>$ (iv) $>$ (iii)

D

(iii) $>$ (ii) $>$ (i) $>$ (iv)

Question 18: Palette 18/22

TS-EAMCET 2022 MCQ

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

A

$ \mathrm{H}_3 \mathrm{C}-\stackrel{+}{\mathrm{C}} \mathrm{H}_2 $

B

C

D

$ \stackrel{+}{\mathrm{C}} \mathrm{H}_3 $

Question 19: Palette 19/22

TS-EAMCET 2022 MCQ

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

A

$[A]<[B]<[C]<[D]$

B

$[$ D $]<[$ C $]<[$ B $]<[$ A $]$

C

$[\mathrm{B}]<[\mathrm{C}]<[\mathrm{D}]<[\mathrm{A}]$

D

$[\mathrm{B}]<[\mathrm{C}]<[\mathrm{A}]<[\mathrm{D}]$

Question 20: Palette 20/22

TS-EAMCET 2022 MCQ

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

A

IV $>$ III $>$ II $>$ I

B

IV $>$ II $>$ I $>$ III

C

IV $>$ II $>$ III $>$ I

D

IV $>$ I $>$ III $>$ II

Question 21: Palette 21/22

TS-EAMCET 2020 MCQ

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

A

II $>$ I $>$ IV $>$ III

B

IV $>$ III $>$ I $>$ II

C

I $>$ II $>$ IV $>$ III

D

I $>$ IV $>$ II $>$ III

Question 22: Palette 22/22

TS-EAMCET 2020 MCQ

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

A

P	Q
$ s p^3 $	$ s p^2 $

B

P	Q
$ s p^2 $	$ s p^2 $

C

P	Q
$ s p^3$	$ s p$

D

P	Q
$ s p^3$	$ s p^3$