Answer:
<em>When an atom of hydrogen loses its electron it becomes positively charged.</em>
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When an aqueous solution of sodium phosphate and magnesium chloride reacts with each other, sodium chloride and magnesium phosphate is formed as a solid product.
Balanced chemical reaction is given as:

Thus, the solid product formed is
and
.
Answer: the last statement is false.
Explanation: election affinity in complex 4 is less that is why there is Need of a mobile carrier cytochrome C. To increase the gradient between complex3 and 4