Question

write to which type it belongs. 1) these grapes are sour. Dash​

Answer 1

The name given to every person or thing of the same class orkind is a common noun. The name given to a collection of persons or things taken together and spoken of as one whole is a collective noun.

Bunch is used to describe a collection of items, hence it is a collective noun. Grapes is the common noun for a fruit.