32:- Which of the following is not a p-block element

32:- Which of the following is not a p-block element

• p-block elements are located in groups 13-18 of the periodic table.
• (a) Sn (Tin) is in Group 14, a p-block element.
• (b) Al (Aluminum) is in Group 13, a p-block element.
• (c) Mg (Magnesium) is in Group 2, which is an s-block element.
• (d) Pb (Lead) is in Group 14, a p-block element.

The correct option is (c).

$$\boxed{\text{c) Mg}}$$

33:- The number of elements in the second period of the periodic table is

• The second period of the periodic table contains elements from Lithium (Li) to Neon (Ne).
• These elements are: Li, Be, B, C, N, O, F, Ne.
• Counting these elements, there are 8 elements in total.

The correct option is (a).

$$\boxed{\text{a) 8}}$$

34:- tribasic acid is

• A tribasic acid is an acid that can donate three protons ($H^+$ ions) per molecule in an aqueous solution.
• (a) $H_3PO_4$ (Phosphoric acid) has three ionizable hydrogen atoms, making it a tribasic acid.
• (b) $H_3PO_2$ (Hypophosphorous acid) has only one ionizable hydrogen atom, making it a monobasic acid.
• (c) $HPO_3$ (Metaphosphoric acid) has one ionizable hydrogen atom, making it a monobasic acid.
• (d) pbH2O is not a standard acid formula.

The correct option is (a).

$$\boxed{\text{a) H3PO4}}$$

35:- Highest diffusion capacity is found in

• According to Graham's Law of Diffusion, the rate of diffusion of a gas is inversely proportional to the square root of its molar mass. This means gases with lower molar masses diffuse faster.
• Molar mass of He (Helium) $\approx 4.00 \text{ g/mol}$.
• Molar mass of Ne (Neon) $\approx 20.18 \text{ g/mol}$.
• Among the given options, Helium has the lowest molar mass, and therefore, the highest diffusion capacity.

The correct option is (a).

$$\boxed{\text{a) He}}$$