Contents

The gain of electron is called……………
a) synthesis                          
b) hydrolysis
c) oxidation                         
d) reduction

d

Energy is neither released nor stored without ………..reaction/s.
a) decomposition only   
b) reduction only
c) oxidation-reduction 
d) photosynthesis only

c

Life processes are impossible with
a) reduction only        
b) decomposition only
c) photosynthesis only   
d) oxidation-
reduction

d

During photosynthesis, which of the following combine and form food and Oxygen?
a) carbon dioxide                               
b) water
c) Nitrogen                           
d) both a and b

d

During photosynthesis, which of the following is/are formed?
a) glucose                                             
b) Nitrogen
c) Oxygen                                             
d) both a and c

d

During photosynthesis, energy is stored in…..
a) food                                  
b) Nitrogen
c) Oxygen                                             
d) water

a