JEE Main 2023 · 12 Apr 2023 Shift 1

A metal chloride contains 55.0% of chlorine by weight. 100 mL vapours of the metal chloride at STP weigh 0.57 g. The molecular formula of the metal chloride is (Given: Atomic mass of chlorine is 35.5u)

1. AMCl
2. BMCl₂
3. CMCl₃
4. DMCl₄

The bond order and magnetic property of acetylide ion are same as that of

1. AO₂⁺
2. BN₂⁺
3. CNO⁺
4. DO₂⁻

For lead storage battery pick the correct statements

1. ADuring charging of battery, PbSO₄ on anode is converted into PbO₂
2. BDuring charging of battery, PbSO₄ on cathode is converted into PbO₂
3. CLead storage battery consists of grid of lead packed with PbO₂ as anode
4. DLead storage battery has ~ 38% solution of sulphuric acid as an electrolyte Choose the correct answer from the options given below:

Four gases A, B, C and D have critical temperatures 5.3, 33.2, 126.0 and 154.3K respectively. For their adsorption on a fixed amount of charcoal, the correct order is:

1. AD > C > B > A
2. BD > C > A > B
3. CC > D > B > A
4. DC > B > D > A

The density of alkali metals is in the order

1. AK < Na < Rb < Cs
2. BNa < K < Cs < Rb

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: In the Ellingham diagram, a sharp change in slope of the line is observed for Mg → MgO at ~ 1120 °C Reason R: There is a large change of entropy associated with the change of state 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: Boron is extremely hard indicating its high lattice energy Statement II: Boron has highest melting and boiling point compared to its other group members. 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

Given below are two statements: Statement I: SbCl₅ is more covalent than SbCl₃ Statement II: The higher oxides of halogens also tend to be more stable than the lower ones. 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