1- alkynes are weakly acidic in nature. Give any two reactions to show the acidic character of ethyne.

Write chemical reactions to show amphoteric nature of water.

Give one reaction supporting the amphoteric nature of water.

Account for the acidic nature of orthoboric acid.

Write any two uses of sulphuric acid.

Which is more acidic: ethene or ethyne? Why?

Which of the following give reaction with nitrous acid ?

Aldehydes, ketones and acids contain >C=0 group.Give any two tests to distinguish between aldehydes and ketones.

Give two reactions that show the acidic nature of phenol.Compare acidity of phenol with that of ethanol

Paragraph Dicarboxylic acids have two carboxylic groups, eg., Acidity of dicarboxylic acid depends upon the stability of intermediate ion and upon the distance between two carboxylic groups. Shorter the distance between two carboxylic groups, greater is the acidic character. Melting point of these acids depends on the symmetry. Greater the symmetry, higher will be the melting point. Dicarboxylic acids on heating give monocarboxylic acid, alkanes, cyclic ketones depending on the conditions Which of the following dicarboxylic acids, will give monocarboxylic acid on heating?

Paragraph Dicarboxylic acids have two carboxylic groups, eg., Acidity of dicarboxylic acid depends upon the stability of intermediate ion and upon the distance between two carboxylic groups. Shorter the distance between two carboxylic groups, greater is the acidic character. Melting point of these acids depends on the symmetry. Greater the symmetry, higher will be the melting point. Dicarboxylic acids on heating give monocarboxylic acid, alkanes, cyclic ketones depending on the conditions Which of the following dicarboxylic acids is used in the manufacture of nylon-66?