JEE Main 2024 · 4 Apr 2024 Shift 2

The correct statement/s about Hydrogen bonding is/are

1. AHydrogen bonding exists when H is covalently bonded to the highly electro negative atom.
2. BIntermolecular H bonding is present in o-nitro phenol
3. CIntramolecular H bonding is present in HF.
4. DThe magnitude of H bonding depends on the physical state of the compound.
5. EH-bonding has powerful effect on the structure and properties of compounds Choose the correct answer from the options given below:

The equilibrium constant for the reaction SO₃ (g) ⇌ SO₂ (g) + ½ O₂ (g) is Kc = 4.9 × 10⁻². The value of Kc for the reaction given below is 2 SO₂ (g) + O₂ (g) ⇌ 2 SO₃ (g) is :

1. A4.9
2. B416
3. C41.6
4. D49

Fuel cell, using hydrogen and oxygen as fuels,

1. Ahas been used in spaceship
2. Bhas as efficiency of 40% to produce electricity
3. Cuses aluminium as catalysts
4. Dis eco-friendly
5. Eis actually a type of Galvanic cell only Choose the correct answer from the options given below:

For a strong electrolyte, a plot of molar conductivity against (concentration)¹ᐟ² is a straight line, with a negative slope, the correct unit for the slope is

1. AS cm² mol⁻¹ L¹ᐟ²
2. BS cm² mol⁻³ᐟ² L
3. CS cm² mol⁻³ᐟ² L⁻¹ᐟ²
4. DS cm² mol⁻³ᐟ² L¹ᐟ²

Given below are two statements : Statement I : The correct order of first ionization enthalpy values of Li, Na, F and Cl is Na < Li < Cl < F. Statement II : The correct order of negative electron gain enthalpy values of Li, Na, F and Cl is Na < Li < F < Cl In the light of the above statements, choose the correct answer from the options given below :

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

The correct order of the first ionization enthalpy is

1. AGa > Al > B
2. BB > Al > Ga
3. CTl > Ga > Al
4. DAl > Ga > Tl

The number of species from the following that have pyramidal geometry around the central atom is ______ S₂O₃²⁻, SO₄²⁻, SO₃²⁻, S₂O₇²⁻

1. A1
2. B2
3. C3
4. D4

A first row transition metal in its +2 oxidation state has a spin-only magnetic moment value of 3.86 BM. The atomic number of the metal is

1. A25
2. B23
3. C22
4. D26