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An ‘Assertion’ and a ‘Reason’ are given ...

An ‘Assertion’ and a ‘Reason’ are given below. Choose the correct answer from the following options :
Assertion(A) : Vinyl halides do not undergo nucleophilic substitution easily
Reason (R) : Even though the intermediate carbocation is stabilized by loosely held -electrons, the cleavage is difficult because of strong bonding

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Anhydrous HF is only slightly ionized and is therefore, a poor conductor of electricity Thus a mixture of KF and HF is electrolysed to increase the conductivity.
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Assertion: Vinyl halides do not undergo substitution reaction. Reason: Although the cation is stablished by loosely bound pi -electron cloud, it least occurs due to high bond strength.

Assertion: Aryl halides undergo nucleophilic substitution reactions with ease. Reason:The carbon halogen bond in aryl halides has partial double bonds character.

Choose the correct answer from the options given below : Which of the following properties do not match with elements of the halogen family?

Choose the correct answer from the options given below : (i) The organic compound which undergoes substitution reaction is : (A) C_2H_2 (B) C_2H_4 (C) C_(10)H_(18) (D) C_2H_6

Assertion(A): Aromatic 1^(@ amines can be prepared by Gabriel phtalmide synthesis. Reason (R ): Aryl halides undergo nucleophilic substitution with anion formed by pthalimide.

In the following questions, a statement of assertion (A) is following by a statement of reason (R ) is more reactive towards nucleophilic substitution reaction than R: NO_(2) group is electron withdrawaing so decreases the double bond of C-CI bond .

In the following questions, a statement of assertion (A) is following by a statement of reason (R ) A: Dow's process is an example of nucleophillic substitution reaction. R : In this process, benzyne is formed as an intermediate.

These questions consists of two statements each printed as Assertion and Reason. While answering these question you are required to choose any one of the following five reponses (a) If both Assertion and Reason arecorrect and Reason is the correct explanation of Asserrtion. (b) If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion. (c ) If Assertion is true but Reason is false. (d) If Assertion is false but Reason is true. Assertion The work done in bringing a body down from the top to the base along a frictionless inclined plane is the same as the work done in bringing it down from the vertical side. Reason The gravitational force on the body along the inclined plane is the same as that along the vertical side.

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