Question

In which of the following process, light helps in bringing about the chemical change?

• A. Photosynthesis in green plants
• B. Manufacture of ammonia from nitrogen and hydrogen (Haber's process)
• C. Reaction between $H_2$ and $C{l}_2$
• D. None of these

Answer 1

Answer: (A), (C)

The correct options are
A Photosynthesis in green plants
C Reaction between $H_2$ and $C{l}_2$

$\begin{array}{c}\text{Manutacture of Ammonia from nitrogen and}\text{hydrogen requires heat and Catalyst.}\\ \text{Wheras Photosynthesis and Reaction between}{H}_{2}and{C}_2\text{just requires Light.}\end{array}$