JEE Main 2024 · 5 Apr 2024 Shift 2

The number of moles of methane required to produce 11 g CO₂(g) after complete combustion is : (Given molar mass of methane in g mol⁻¹ : 16)

1. A0.25
2. B0.5
3. C0.75
4. D0.35

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : NH₃ and NF₃ molecule have pyramidal shape with a lone pair of electrons on nitrogen atom. The resultant dipole moment of NH₃ is greater than that of NF₃. Reason (R) : In NH₃, the orbital dipole due to lone pair is in the same direction as the resultant dipole moment of the N–H bonds. F is the most electronegative element. 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. C(A) is true but (R) is false
4. D(A) is false but (R) is true

Given below are two statements : Statement I : On passing HCl(g) through a saturated solution of BaCl₂, at room temperature white turbidity appears. Statement II : When HCl gas is passed through a saturated solution of NaCl, sodium chloride is precipitated due to common ion effect. 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

For the electro chemical cell M|M²⁺||X|X²⁻ If E⁰(M²⁺/M) = 0.46 V and E⁰(X/X²⁻) = 0.34 V. Which of the following is correct ?

1. AM + X → M²⁺ + X²⁻ is a spontaneous reaction
2. BM²⁺ + X²⁻ → M + X is a spontaneous reaction
3. CEcell = 0.80 V
4. DEcell = −0.80 V

The quantity of silver deposited when one coulomb charge is passed through AgNO₃ solution :

1. A1 g of silver
2. B0.1 g atom of silver
3. C1 electrochemical equivalent of silver
4. D1 chemical equivalent of silver

Given below are two statements : Statement I : The metallic radius of Na is 1.86 Å and the ionic radius of Na⁺ is lesser than 1.86 Å. Statement II : Ions are always smaller in size than the corresponding elements. 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 correct but Statement II is false
4. DStatement I is incorrect but Statement II is true

The correct statements from the following are :

1. AThe decreasing order of atomic radii of group 13 elements is Tl > In > Ga > Al > B.
2. BDown the group 13 electronegativity decreases from top to bottom.
3. CAl dissolves in dil. HCl and liberates H₂ but conc. HNO₃ renders Al passive by forming a protective oxide layer on the surface.
4. DAll elements of group 13 exhibits highly stable +1 oxidation state.
5. EHybridisation of Al in [Al(H₂O)₆]³⁺ ion is sp³d². Choose the correct answer from the options given below :

The number of ions from the following that have the ability to liberate hydrogen from a dilute acid is ________. Ti²⁺, Cr²⁺ and V²⁺

1. A0
2. B1
3. C2
4. D3