Chemistry
The process of photosyntheis takes place in the presence of :
- Electricity
- Heat
- Light
- Sound
Answer
Light
Reason — Some chemical reactions like Photosynthesis can take place only in the presence of light. They are called photochemical reactions.
Electricity is not required for photosynthesis. Heat may affect the rate of photosynthesis, but it is not essential for the process. Sound has no role in photosynthesis.
Related Questions
A solution of silver nitrate is added to a solution of sodium chloride. The colour of the precipitate formed is :
- Black
- White
- Grey
- Green
Which of the following acts as a catalyst in the manufacture of ammonia gas from nitrogen and hydrogen ?
- Manganese dioxide
- Platinum
- Iron
- Molybdenum
Define :
(a) Chemical reaction
(b) Catalyst
(c) Promoter.
What is a chemical bond ?