Question

(i) in the process of photosynthesis food A is prepared which gets converted into food B. what are A and B? (ii) leaves of a healthy potted plant we coated with petroleum jelly. how will it affect the plant?

Answer 1

The process is Carbon dioxide+ water---------------sunlight
_____________chlorophyl= carbohydrate+oxygen
The prepared food is carbohydrates and gets converted into starch.
So A is carbohydrates and B is starch.

Answer 2

A is carbohydrate and B is glucose

2 Petroleum Jelly is a waxy substance which will clog all the stomata on the leaf surface.  It will damage the leaf
Hope it helps you......!!