JEE Main 2024 · 8 Apr 2024 Shift 1

Combustion of glucose (C₆H₁₂O₆) produces CO₂ and water. The amount of oxygen (in g) required for the complete combustion of 900 g of glucose is : [Molar mass of glucose in g mol⁻¹ = 180]

1. A32
2. B800
3. C960
4. D480

Thiosulphate reacts differently with iodine and bromine in the reactions given below: 2S₂O₃²⁻ + I₂ → S₄O₆²⁻ + 2I⁻ S₂O₃²⁻ + 5Br₂ + 5H₂O → 2SO₄²⁻ + 4Br⁻ + 10H⁺ Which of the following statement justifies the above dual behaviour of thiosulphate?

1. ABromine is a stronger oxidant than iodine
2. BBromine is a weaker oxidant than iodine
3. CThiosulphate undergoes oxidation by bromine and reduction by iodine in these reactions
4. DBromine undergoes oxidation and iodine undergoes reduction in these reactions

Among the following halogens F₂, Cl₂, Br₂ and I₂ Which can undergo disproportionation reactions?

1. AOnly I₂
2. BF₂ and Cl₂
3. CCl₂, Br₂ and I₂
4. DF₂, Cl₂ and Br₂

Give below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: The stability order of +1 oxidation state of Ga, In and Tl is Ga < In < Tl. Reason R: The inert pair effect stabilizes the lower oxidation state down the group. In the light of the above statements, choose the correct answer from the options given below:

1. ABoth A and R are true and R is the correct explanation of A.
2. BBoth A and R are true but R is NOT the correct explanation of A.
3. CA is true but R is false.
4. DA is false but R is true.

Given below are two statements: Statement I: N(CH₃)₃ and P(CH₃)₃ can act as ligands to form transition metal complexes. Statement II: As N and P are from same group, the nature of bonding of N(CH₃)₃ and P(CH₃)₃ is always same with transition metals. 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.

Iron (III) catalyses the reaction between iodide and persulphate ions, in which

1. AFe³⁺ oxidises the iodide ion
2. BFe³⁺ oxidises the persulphate ion
3. CFe²⁺ reduces the iodide ion
4. DFe²⁺ reduces the persulphate ion Choose the most appropriate answer from the options given below:

An octahedral complex with the formula CoCl₃.nNH₃ upon reaction with excess of AgNO₃ solution gives 2 moles of AgCl. Consider the oxidation state of Co in the complex is 'x'. The value of 'x + n' is __________.

1. A3
2. B6
3. C5
4. D8

Number of Complexes with even number of electrons in t₂g orbitals is - [Fe(H₂O)₆]²⁺, [Co(H₂O)₆]²⁺, [Co(H₂O)₆]³⁺, [Cu(H₂O)₆]²⁺, [Cr(H₂O)₆]²⁺

1. A2
2. B5
3. C3
4. D1