When a plant goes through photosynthesis, it uses light energy and converts it into chemical energy
I think the anwser is A but I'm not sure so I might need to get somebody else's opinion like i said I'm sorry if it's wrong
Answer : The mass of 
required is, 61.82 grams.
Explanation :
First we have to calculate the moles of 
Now we have to calculate the moles of .
The balanced chemical equation is:
From the balanced reaction we conclude that
As, 1 mole of react with 6 mole of
So, 0.322 moles of react with 
moles of
Now we have to calculate the mass of
Molar mass of = 32 g/mole
Therefore, the mass of required is, 61.82 grams.
The TLC analysis is aimed to verify the completion and the product of the reaction. potassium permanganate is then added to the TLC plate to detect the existence of double bond in the final product. Potassium permanganate reacts with the double bond and makes the spot yellow-brown.
Electrophilic addition is an exothermic reaction, in which a pi bond is turned into a sigma bond. The double bond in the alkene acts as a nucleophile. Halogens, halogen acids , hypohalous acids, sulphonic acid and water can be used as the electrophilic reagent. In this experiment, bromination of cholesterol is performed. The electrophilic attack of Br2generates acyclic bromonium ion. The addition gives a trans stereochemistry to the bromonium ion. As the Br-attacks the most substituted carbon in anti-periplanar fashion by SN2reaction, it would result in the inversion of configuration at that specific carbon.
Learn more about Double bond here-
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In No3-1 the oxidation number of oxygen is -5 so oxidation number of N would be +5
