What of the following statement is correct: An aldol reaction can involve two al

Question

What of the following statement is correct: An aldol reaction can involve two aldehydes acting as eletrophiles. An aldol reaction can involve tw aldehydes acting as nuclephiles. An aldolreaction can involve an enolate acting as a nucleophile and an aldehydeacting as an electrophile. An aldol reaction can involve an enolate acting as an electrophile and an aldehyde acting as a nucleophile. An aldol reaction involving two different aldehydes possessing acidic Alpha -hydrogens leads to just one aldol product. Which of the following statements is incorrect? An aldol reaction may involve an enolate derived from acetophenone as an intermediate. An aldol reaction may involve an enolate derived from anisaldchydce as an intermediate. An aldol reaction will involve an aldolate ion as an intermediate. An aldol reaction may form an a,P-unsaturated carbonyl compound as a product. An aldol reaction may form a Beta -hydroxyaldehyde as a product. What group actually adds to the aromatic compound during the nitration experiment? NO2 NO2 NO+ NO3+ NO3+ Which one of these statements is correct: The methyl ester group is strongly deactivating and therefore ortho-directing in an aromatic electrophilic substitution reaction. The methyl ester group is moderately deactivating and therefore ortho-, para-directing in an aromatic electrophilic substitution reaction. The methyl ester group is weakly deactivating and therefore ortho-, para-directing in an aromatic electrophilic substitution reaction. The methyl ester group is moderately deactivating and therefore meta-directing in an aromatic electrophilic substitution reaction. The methyl ester group is strongly deactivating and therefore metadirecting in an aromatic electrophilic substitution reaction.

Explanation / Answer

Solution :-

Q6 Answer is option C that is enolate acts as nucleophile and aldehyde acts as electrophile.

Q7 Answer is option B That is Aldol reaction can involve the enolate formed from anisaldehyde. (because anisaldehyde can acts as electrophile)

Q8) Answer is option B that is NO2^+

The nitrating mixture forms the NO2^+ electrophile which is added to the aromatic ring.

Q9 Answer is option D that is the methyl ester is the moderately deactivating group therefore meta directing in aromatic electrophilic substitution.

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