1
VITEEE 2025
MCQ (Single Correct Answer)
+4
-1

How many moles of $\mathrm{KMnO}_4$ are required to oxidise 1 mole of oxalic acid in acidic medium?

A

0.5 mol

B

0.25 mol

C

0.4 mol

D

0.1 mol

2
VITEEE 2025
MCQ (Single Correct Answer)
+4
-1

Which of the following complexes can show both facial ( $f a c$ ) and meridional (mer) isomerism?

A

$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3 \mathrm{Cl}_3\right]$

B

$\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}$

C

$\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_3 \mathrm{Cl}_3\right]$

D

$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$

3
VITEEE 2025
MCQ (Single Correct Answer)
+4
-1

In the diazotisation of aniline with sodium nitrite and hydrochloric acid the excess of hydrochloric acid is used primarily to

A

neutralise the base liberated

B

ensure a stoichiometric amount of nitrous acid

C

suppress the hydrolysis of phenol

D

suppress the concentration of free aniline

4
VITEEE 2025
MCQ (Single Correct Answer)
+4
-1

Identify the product $Q$ in the following reaction sequence,

VITEEE 2025 Chemistry - Aldehyde and Ketone Question 1 English
A
VITEEE 2025 Chemistry - Aldehyde and Ketone Question 1 English Option 1
B
VITEEE 2025 Chemistry - Aldehyde and Ketone Question 1 English Option 2
C
VITEEE 2025 Chemistry - Aldehyde and Ketone Question 1 English Option 3
D
VITEEE 2025 Chemistry - Aldehyde and Ketone Question 1 English Option 4

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