1
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

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

Identify the correct statements from the following

I. Photochemical smog has high concentration of oxidising agents.

II. $\mathrm{NO}_2$ is present in classical smog.

III. Higher concentration of $\mathrm{SO}_2$ in air can cause stiffness of flower buds.

IV. pH of rain water is approximately 7.5 .

A

I and III

B

I and II

C

III and IV

D

II and III

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

When sodium fusion extract of an organic compound is boiled with iron (II)sulphate solution followed by addition of concentrated $\mathrm{H}_2 \mathrm{SO}_4$, gives prussian blue colour. This confirms the presence of the element

A

sulphur

B

chlorine

C

phosphorus

D

nitrogen

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