JEE Main 2023 · 11 Apr 2023 Shift 2

Which one of the following pairs is an example of polar molecular solids?

1. ASO₂(s), NH₃(s)
2. BSO₂(s), CO₂(s)
3. CHCl(s), AlN(s)
4. DMgO (s), SO₂(s)

What weight of glucose must be dissolved in 100 g of water to lower the vapour pressure by 0.20 mm Hg? (Assume dilute solution is being formed) Given : Vapour pressure of pure water is 54.2 mm Hg at room temperature. Molar mass of glucose is 180 g mol⁻¹

1. A3.69 g
2. B4.69 g
3. C2.59 g
4. D3.59 g

A solution is prepared by adding 2 g of “X” to 1 mole of water. Mass percent of “X” in the solution is

1. A2%
2. B5%
3. C10%
4. D20%

Given below are two statements : Statement I : In the metallurgy process, sulphide ore is converted to oxide before reduction. Statement II : Oxide ores in general are easier to reduce. In the light of the above statements, choose the most appropriate answer from the options given below:

1. ABoth Statement I and Statement II are correct
2. BBoth Statement I and Statement II are incorrect
3. CStatement I is correct but Statement II is incorrect
4. DStatement I is incorrect but Statement II is correct

Which hydride among the following is less stable?

1. ALiH
2. BBeH₂
3. CNH₃
4. DHF

One mole of P₄ reacts with 8 moles of SOCl₂ to give 4 moles of A, x mole of SO₂ and 2 moles of B. A, B and x respectively are

1. APCl₃, S₂Cl₂ and 4
2. BPOCl₃, S₂Cl₂ and 2
3. CPCl₃, S₂Cl₂ and 2
4. DPOCl₃, S₂Cl₂ and 4

Alkali metal from the following with least melting point is:

1. ANa
2. BK
3. CRb
4. DCs

The magnetic moment is measured in Bohr Magneton (BM). Spin only magnetic moment of Fe in [Fe(H₂O)₆]³⁺ and [Fe(CN)₆]³⁻ complexes respectively is:

1. A6.92 B.M. in both
2. B4.89 B.M. and 6.92 B.M.
3. C5.92 B.M. and 1.732 B.M.
4. D3.87 B.M. and 1.732 B.M.