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Metals and Non-Metals

Give the impo...

Question

Give the importance of the following in living beings:

(a) Nitrogen, (b) Hydrogen,

(c) Carbon.

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Solution

(a) Nitrogen: It is used to preserve food.
(b) Hydrogen: It is used in the hydrogenation of vegetable oils to make ghee.
(c) Carbon: It is essential for the growth and development of living beings.

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Question 15
Give the formulae of the compounds formed from the following sets of elements

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(c) Nitrogen and hydrogen
(d) Carbon and chlorine
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Q. About 98 percent of the mass of every living organism is composed of just six elements; carbon, hydrogen, nitrogen, oxygen, _____________.

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