1
TG EAPCET 2025 (Online) 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

An alkyne has the molecular formula $\mathrm{C}_6 \mathrm{H}_{10}$. The number of 1 -alkyne isomers (excluding stereoisomers) possible for it is

A

2

B

5

C

3

D

4

2
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Dehydration of an organic acid $X$ with concentrated $\mathrm{H}_2 \mathrm{SO}_4$ at 373 K gives $\mathrm{H}_2 \mathrm{O}$ and gas $Y$. The hybridisation of the carbon in $Y$ and nature of $Y$ are respectively.

A

$s p^2$, Neutral

B

$s p$, Neutral

C

$s p^2$, Acidic

D

$s p$, Acidic

3
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Consider the given sequence of reactions,

$$ \mathrm{C}_2 \mathrm{H}_6+\frac{3}{2} \mathrm{O}_2 \xrightarrow[\Delta]{(\mathrm{CH}, \mathrm{COO})_2 \mathrm{Mn}} X \xrightarrow{\mathrm{Na}} Y $$

Electrolysis of aqueous solution of $Y$ gives gases $P$ and $Q$ at anode. $P$ and $Q$ are respectively

A

$\mathrm{C}_2 \mathrm{H}_6, \mathrm{CO}_2$

B

$\mathrm{CH}_4, \mathrm{CO}_2$

C

$\mathrm{C}_2 \mathrm{H}_6, \mathrm{H}_2$

D

$\mathrm{CH}_4, \mathrm{CO}$

4
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is an example of electrophilic substitution reaction?

A

$\mathrm{CH}_3 \mathrm{CHO}+\mathrm{HCN} \longrightarrow \mathrm{CH}_3 \mathrm{CH}(\mathrm{OH}) \mathrm{CN}$

B

$\left(\mathrm{CH}_3\right)_3 \mathrm{CX}+\mathrm{H}_2 \mathrm{O} \longrightarrow\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{OH}+\mathrm{HX}$

C

$\mathrm{C}_6 \mathrm{H}_6+\mathrm{CH}_3 \mathrm{COCl} \xrightarrow{\mathrm{AlCl}_3} \mathrm{C}_6 \mathrm{H}_5\left(\mathrm{COCH}_3\right)+\mathrm{HCl}$

D

$\mathrm{BrCH}_2 \mathrm{CH}_2 \mathrm{Br}+\mathrm{Zn} \xrightarrow[\Delta]{\text { Alcohol }} \mathrm{CH}_2=\mathrm{CH}_2+\mathrm{ZnBr}_2$

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