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Modern Periodic Table

Give any two ...

Question

Give any two uses of the following
a. Aluminium b. Copper c.Carbon d.Nitrogen

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Solution

a. Aluminium is used to make utensils and foils to wrap food.
b. Copper is used in making electrical wires and utensils.
c.Carbon in its diamond form is used in jewellery and graphite is used as pencil leads.
d.Nitrogen is used to make fertilisers and nitric acid.

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Q. Give the balanced equation for the following conversions:
(i) Ammonia to nitrogen using an acidic gas.
(ii) Ammonia to nitrogen using copper oxide.
(iii) Ammonia to nitrogen using oxygen.
(iv) Ammonia to nitrogen trichloride.
(v) Ammonia to ammonium sulphate.
(vi) Ammonia solution to an amphoteric hydroxide.
(vii) Ammonia to ammonium carbonate.
(viii) Copper oxide to copper.

Q. Write the balanced chemical equations for the following reactions:
(a)

Calcium hydroxide + Carbon dioxide \underset{}{\to} Calcium carbonate + Water

Aluminium + Copper chloride \underset{}{\to} Aluminium chloride + Copper

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iron, copper, aluminium

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Q. Write any two uses of Aluminium.

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