Question

1) Assertions : f2 is strong oxidizing agent.
Reason: electron gain enthalpy of fluorine is less negative.
2) Assertions : (Ch3)3- coch3 gives (Ch3)3- CI and Ch3oh on treatment with HI.
Reason : reaction occur by SN1 mechanism.
3) Assertions : transition metal has low melting points.
Reason : the involvement of greater number of (n-1)d and ns electrons in the interatomic metallic bonding.
4) Assertions : hydrolysis of an ether follows first order kinetics.
Reason: concentration of water remain nearly constant during the course of the reaction.
5) Assertions : benzoic acid does not undergo friedel crafts reaction.
Reason: carboxyl group is activating an undergo electrophilic substitution reaction.
Put your answer by
A - both assertion and reason are correct statements and the reason is the correct explanation of assertion.
B - both assertion and reason are correct statement but reason is not correct explaination of assertion.
C - assertion is correct but reason is wrong.
D - assertion is wrong but reason is correct.

Answer 1

Answer:

Explanation:

1) A

2) C

3) B

4) D

5) B

Answer 2

1. B) Both Assertion and Reason are correct statements , but Reason is not the correct explanation of Assertion.

• The Strong Oxidizing power of Florine is due to its small size and high electronegativity, which creates the electron-electron repulsion inside the atom. Leading to easy reduction of Florine itself or in other words easy oxidation of other atom.

2) A) Both Assertion and Reason are correct statements , and Reason is  the correct explanation of Assertion.

3) D) Assertion is wrong but Reason is correct.  

• Transition metals have higher melting points till middle of the series, then their melting point decreases. This is due the number of lone pairs in the metal, which makes the metal more stronger.

4) A) Both Assertion and Reason are correct statements , and Reason is  the correct explanation of Assertion.

5) C) Assertion is true, but reason is wrong.

• The Carboxylic group being an electron withdrawing group, makes the ring deactivating, thus it shows less tendency towards electrophilic substitution by Friedal craft reaction.