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College Entrance	Jamia Millia Islamia Aligarh Muslim University Banaras Hindu University

2021

Q41
On the basis of ΔH°bond, which of the following has the strongest bond?

Solution

Q42
Which of the following oxoacids of Sulphur contains peroxide linkage?

Solution

Q43
Which of the following reaction is not correct?

Solution

Q44
Which of the following belongs to the class of allylic halides?

Solution

Q45
Which reagent will be required for one-step conversion of benzenediazonium to phenol?

Solution

Q46
Assertion (A): Relative lowering in vapour pressure is a colligative property.
Reason (R): Relative lowering in vapour pressure depends upon the mole fraction of pure solvent.

Solution

Q47
Assertion (A): ZnO on heating turns yellow.
Reason (R): Excess Zn²⁺ ions move to interstitial sites and the electron to neighbouring interstitial sites.

Solution

Q48
Assertion (A): F₂ is a powerful oxidizing agent.
Reason (R): Fluorine shows anomalous behaviour.

Solution

Q49
Assertion (A): Monoclinic Sulphur is stable at room temperature.
Reason (R): Both Rhombic Sulphur and Monoclinic Sulphur have S8 molecules.

Solution

Q50
Assertion (A): Reaction of (CH₃)₃C – Br with CH₃ONa gives the majority of 2-methylpropene.
Reason (R): CH₃ONa acts as a strong base.

Solution

Subjects

2021

Q41 On the basis of ΔH°bond, which of the following has the strongest bond?

Solution

Q42 Which of the following oxoacids of Sulphur contains peroxide linkage?

Solution

Q43 Which of the following reaction is not correct?

Solution

Q44 Which of the following belongs to the class of allylic halides?

Solution

Q45 Which reagent will be required for one-step conversion of benzenediazonium to phenol?

Solution

Q46 Assertion (A): Relative lowering in vapour pressure is a colligative property. Reason (R): Relative lowering in vapour pressure depends upon the mole fraction of pure solvent.

Solution

Q47 Assertion (A): ZnO on heating turns yellow.Reason (R): Excess Zn²⁺ ions move to interstitial sites and the electron to neighbouring interstitial sites.

Solution

Q48 Assertion (A): F₂ is a powerful oxidizing agent. Reason (R): Fluorine shows anomalous behaviour.

Solution

Q49 Assertion (A): Monoclinic Sulphur is stable at room temperature. Reason (R): Both Rhombic Sulphur and Monoclinic Sulphur have S8 molecules.

Solution

Q50 Assertion (A): Reaction of (CH₃)₃C – Br with CH₃ONa gives the majority of 2-methylpropene. Reason (R): CH₃ONa acts as a strong base.

Solution

Subjects

Q41
On the basis of ΔH°bond, which of the following has the strongest bond?

Q42
Which of the following oxoacids of Sulphur contains peroxide linkage?

Q43
Which of the following reaction is not correct?

Q44
Which of the following belongs to the class of allylic halides?

Q45
Which reagent will be required for one-step conversion of benzenediazonium to phenol?

Q46
Assertion (A): Relative lowering in vapour pressure is a colligative property.
Reason (R): Relative lowering in vapour pressure depends upon the mole fraction of pure solvent.

Q47
Assertion (A): ZnO on heating turns yellow.
Reason (R): Excess Zn²⁺ ions move to interstitial sites and the electron to neighbouring interstitial sites.

Q48
Assertion (A): F₂ is a powerful oxidizing agent.
Reason (R): Fluorine shows anomalous behaviour.

Q49
Assertion (A): Monoclinic Sulphur is stable at room temperature.
Reason (R): Both Rhombic Sulphur and Monoclinic Sulphur have S8 molecules.

Q50
Assertion (A): Reaction of (CH₃)₃C – Br with CH₃ONa gives the majority of 2-methylpropene.
Reason (R): CH₃ONa acts as a strong base.