Question

please give correct answer to these 5 questions with explanations, thankyou

Select the structural features that nucleophiles typically contain What is the best reagent to use for the following substitution reaction? Select one or more: Negative charges Lone pairs Unpaired electrons Double bonds Positive charges Select one: MgBr Which of the following molecules are most likely to react as electrophiles? ob. NaOH COOH Select one or more w occo oor on ll“ fot Complete the following sentence to produce a TRUE statement The involve(s) a carbocation intermediate What is the product formed from the following SN2 reaction? Select one: a S1 and S2 reaction mechanisms ALWAYS b. SN 2 reaction mechanism ALWAYS O CS2 reaction mechanism MAY OR MAY NOT d. SN 1 reaction mechanism ALWAYS e. Sn 1 and SN 2 reaction mechanisms NEVER Select one: a ocy

Answer 1

Nucleophiles are the species having lone pair up otectornoun shared pour of electrone chon bonding 2n) ve change. @ weakly bonded bonding pair of electrone Chonds) - They attacks on election deppicient species. He og Nucleophiles NH3 having lone pairs. Nucleophiles having -ve changes city Ibond il weak, go the two electro nt are shifted towards one of the bonded alom to give ve change

In above reaction π bond (2) attacks on electrophile so, T sond is a nucleophile EJ 6 E For the first quextion, we can select three option, which contain the structural & camtures of nuclephile. n Negative charges OH, NH, CT, B5 (2) Lone paire H₂O: NH₂ (3) Double bonds &c=ch

③ which are electrophilic ? The compounds contain electrophilic centres electron depicient centres ale called as electrophiles. ---> mode elecow philic electrophilie Carbonyl Cuibon is attacked by nucleophile onts 0 0 0

T bond t Non bonding election pain nucleophile il contains the charge Carton contains Gelections in austrumost shell. So it is lack op 2e leche to complete ocht, so it is clechon philic. * ) # B e electrophilie is effect of Bo creates electron der ficlenryson adja rentourbon.

can be attacked by so that nucleophile Corbon easily. Electrophilic N one pair Lone pair on cleophile CH-BY le BX NY Answers are

B% option (6) position electrophilic so this attacked by nucleophile & option is wret.

syadhone: + Benzyl chloride Sodiumphenoxide A - Nach

S on is not suitable, because - -ve change is not present on oxygen The answer is 1 ③ The involvecs) a cabo cation in lese diafe + x C R R- Ny x SN Mechanix ; I stop formation of Carto cation R + x Rx I step tvely at tack charged ot Nu up oncleophile on Carbon of carboration, R - Nu

SN nech anism Mechanism single step No intermediate Transition state. REX R Nu 4 - In SN mechanism only doseove the formation of we can Carbocation intromediate option. [a is correct The snil reaction mechaniam always a carbocation in termediate. involves