Answer:
photosynthesis occurs so the plants can create energy from carbon dioxide and sunlight.
Explanation:
so basiclly it occurs so the plants can create energy to stay alive.
2) mg donates two protons to O.
Answer:
Number of moles (n)=
molecular weight
weight
Weight=n×Molecular weight
=0.5×14
Mass=7g
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Option-C: They react mainly by substitution.
Explanation:
Alkene doesn't give substitution reactions because they are non polar in nature. The double bond in alkene is responsible for Electrophillic Addition reactions as it electron rich and nucleophilic in nature. Reaction of Alkene is given below,</span>