NEET-UG 2024 · Code T1

Match List I with List II. List I (Process)

1. AIsothermal process
2. BIsochoric process
3. CIsobaric process
4. DAdiabatic process List II (Conditions) I. No heat exchange II. Carried out at constant temperature III. Carried out at constant volume IV. Carried out at constant pressure Choose the correct answer from the options given below:

Given below are two statements: Statement I : The boiling point of three isomeric pentanes follows the order n-pentane > isopentane > neopentane Statement II : When branching increases, the molecule attains a shape of sphere. This results in smaller surface area for contact, due to which the intermolecular forces between the spherical molecules are weak, thereby lowering the boiling point. In the light of the above statements, choose the most appropriate answer from the options given below:

1. AStatement I is correct but Statement II is incorrect.
2. BStatement I is incorrect but Statement II is correct.
3. CBoth Statement I and Statement II are correct.
4. DBoth Statement I and Statement II are incorrect.

Match List I with List II. List I (Molecule)

1. Aethane
2. Bethene
3. Ccarbon molecule, C₂
4. Dethyne List II (Number and types of bond/s between two carbon atoms) I. one σ-bond and two π-bonds II. two π-bonds III. one σ-bond IV. one σ-bond and one π-bond Choose the correct answer from the options given below:

Match List I with List II. List I Quantum Number

1. Amₗ
2. Bmₛ
3. Cl
4. Dn List II Information provided I. shape of orbital II. size of orbital III. orientation of orbital IV. orientation of spin of electron Choose the correct answer from the options given below:

‘Spin only’ magnetic moment is same for which of the following ions?

1. ATi³⁺
2. BCr²⁺
3. CMn²⁺
4. DFe²⁺
5. ESc³⁺ Choose the most appropriate answer from the options given below:

On heating, some solid substances change from solid to vapour state without passing through liquid state. The technique used for the purification of such solid substances based on the above principle is known as

1. ADistillation
2. BChromatography
3. CCrystallization
4. DSublimation

The energy of an electron in the ground state (n = 1) for He⁺ ion is −x J, then that for an electron in n = 2 state for Be³⁺ ion in J is :

1. A−4x
2. B−4/9 x
3. C−x
4. D−x/9

Activation energy of any chemical reaction can be calculated if one knows the value of

1. Aorientation of reactant molecules during collision.
2. Brate constant at two different temperatures.
3. Crate constant at standard temperature.
4. Dprobability of collision.