Question

4. What is the OBSERVED change in the rate of reaction with AgNO, in alcohol caused by each of the following? (Cite experimental evidence.) (A) Nature of halogen (Cl, Br) (B) Extent of branching of RX (C) Steric hindrance

Answer 1

Please refer below image that will help you to understand it better

observed change in rate of reaction with AgNO3 in Alcohol © Nature of halogen (C1, Br) So, reaction we can write botweon Alkyl halido & AgNO3 R-X + AgNO3 Ethanol Rot Agx, + Not So, hono, nature of leaving group also important bother the Teaving group more is rate of reaction If we compare (& BY SO, BY is good leaving group as it is largoy in size than c) so more stabilize the - vo charge So, Rato of reaction is mone whon we have BY ® Extent of branching of R-X RX + AgNO3 ethali Rt + AgX J + NO3- Hore in this case formation of carbocation takos place so we have to look at its stability also. mone the stability of carbocation more the reactien rato If we compare stability of primary, secondary. tertiary Carbocation. Tortiary is more stable so more stablo so, mone branching more rate of reaction © Steric hinderance, In this case, storic hinderance means opposition to remove the group. as more tho bukier the group more branching, more storic hinderance, so more difficut to remove group so, more steric hinderance less rate of no action so! inversly proportional,