Chapter Practice

Addition of water to alkynes occurs in acidic medium and in the presence of ${\mathrm{Hg}}^{2+}$ ions as a catalyst. Which of the following products will be formed on addition of water to but-1-yne under these conditions?

Which of the following compounds is most reactive towards nucleophilic addition reactions?

Match the examples given in Column I with the names of the reaction in Column II and choose the correct option using the codes given below:

Sodium bisulphite is used for the purification of aldehydes and ketones. Explain.

Di-tert-butyl ketone does not give a ${\mathrm{NaHSO}}_3$ adduct but acetone does. Give reason.

Why is it necessary to control the pH during the reaction of aldehydes and ketones with ammonia derivatives?

Write the products of oxidation of pentan-2-one and are the major products same or different? Explain.

Write the products of oxidation of pentan-2-one. Are the major products same or different? Explain.