What is the waste product of photosynthesis?
a. o2
b. co2
c. h2o
d. c6h12o6

Answer : The correct option is, (a)

Explanation :

Photosynthesis : It is a chemical process which occurs in the green plants or living organism.

During photosynthesis process, the carbon dioxide reacts with water in the presence of sunlight to gives glucose and oxygen as a byproduct.  

In the photosynthesis reaction, carbon dioxide and water molecule are the reactants and glucose and oxygen are the products.

The balanced chemical reaction will be,

From the balanced reaction we conclude that the carbon dioxide and water are the reactants which are present on the left side in a reaction and glucose and oxygen are the products which are present on the right side in the reaction.

Hence, in the photosynthesis the waste product is .

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.