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

Which of the following complex ions is expected to appear colourless in aqueous solution?

A

$\left[\mathrm{Zn}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$

B

$\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}$

C

$\left[\mathrm{Cu}\left(\mathrm{NH}_3\right)_4\right]^{2+}$

D

$\left[\mathrm{CoCl}_4\right]^{2-}$

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

A 0.05 M solution of aniline hydrochloride has a pH of 3.85 . Calculate the ionisation constant ( $K_b$ ) of aniline.

A

$4.5 \times 10^{-10}$

B

$62 \times 10^{-10}$

C

$1.5 \times 10^{-9}$

D

$2.5 \times 10^{-8}$

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

Which of the following oxides of nitrogen has a lone pair and is paramagnetic?

A

$\mathrm{N}_2 \mathrm{O}$

B

$\mathrm{NO}_2$

C

NO

D

$\mathrm{N}_2 \mathrm{O}_4$

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