What are electrophiles and nucleophiles? Explain with examples.

What are ambident nucleophiles ? Explain with the example.

Ambident nucleophile is

What are pesticides and herbicides ? Explain using examples.

Reagents which attack organic compounds may be classified as electrophiles, nucleophiles and free radicals. Explain nucleophiles and electrophiles with suitable examples.

Reagents which attack organic compounds may be classified as electrophiles, nucleophiles and free radicals. Name the type of the fission of a covalent bond which gives free radicals.

The crossed-aldol product formed when propanal acts as the electrophile and butanal as nucleophile is

In certain cases, physisorption tansfers into chemisorption as temperature is increased. Explain with an example.

Explain the term Nucleophile

What are antihistamines? Give two examples? Explain how do they act on the human body?

Aldehydes and ketones are amphoteric. Thus they can react both as acids and bases. Under acidic conditions, the carbon of the protonated carbonyl group is much more electrophilic, reacting even with weak necleophile. Carbonyl compound gives nucleophilic addition reaction. In this reaction the nucleophilic attack precedes the electrophilic attack. Which of the statements regarding nucleophilic addition to carbonyl compounds "is"//"are" correct?