1
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

The number of radial nodes in 3s and 2p respectiely are

A
2 and 0
B
1 and 2
C
0 and 2
D
2 and 1
2
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

The activation energy for a reaction is $9.0 \mathrm{~K} \mathrm{cal} \mathrm{mol}^{-1}$. The increase in the rate constant when its temperature is increased from 298 K to 308 K is

A
$10 \%$
B
$100 \%$
C
$50 \%$
D
$63 \%$
3
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

4.5 g of aluminium (Atomic mass 27 amu ) is deposited at cathode from $\mathrm{Al}^{3+}$ solution by a certain quantity of electric charge. The volume of hydrogen produced at STP from $\mathrm{H}^{+}$ions in the solution by the same quantity of electric charge will be

A
44.8 L
B
11.2 L
C
22.4 L
D
5.6 L
4
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

When diluted $\mathrm{H}_2 \mathrm{SO}_4$ is added to aqueous solution of potassium chromate, yellow colour solution turns to orange colour. This signifies that

A
chromate ions are reduced.
B
chromate ions are oxidised.
C
monocentric complex is converted into dicentric complex.
D
oxygen gel removed from chromate ions.
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