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Name the following:
(i) Gas obtained by treating chlorine in excess of ammonia.
(ii) Solid obtained by passing ammonia over heated copper oxide.
(iii) Products obtained by burning ammonia in oxygen.
(iv) Substance used to dry ammonia.
(v) Liquid when added to metallic nitride that yield ammonia.
(vi) Indicator that turns deep pink when treated with NH4OH.
(vii) Products obtained by treating ammonia with excess chlorine.
(viii) Basic gas that is used as a refrigerant.
(ix) Solution used to remove fat grease.
(x) Salt known as ammoniac.
(xi) Salt used to clean metal surfaces before soldering, tinning, etc.
(xii) Ammonium salt used in explosive.
(xiii) An acidic gas which reacts with a basic gas liberating neutral gas.
(xiv) A nitride of divalent metal which reacts with hot water producing ammonia.

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Solution

(i) Gas obtained by treating chlorine in excess of ammonia: Nitrogen gas
8NH3Ammonia excess + 3Cl2Chlorine gas N2Nitrogen gas + 6NH4ClAmmonium Chloride

(ii) Solid obtained by passing ammonia over heated copper oxide: Metallic copper
3CuOCopper oxide + 2NH3Ammonia 3CuMettalic copper + 3H2O + N23CuOCopper oxide + 2NH3Ammonia 3CuMettalic copper + 3H2O + N2

(iii) Products obtained by burning ammonia in oxygen: Nitrogen and water
4NH3 + 3O2 6H2O + 2N2 + Heat

(iv) Substance used to dry ammonia: Quicklime, also known as calcium oxide (CaO)

(v) Liquid when added to metallic nitride that yield ammonia: Warm water
M3N2 Metal nitride+ 6H2O 3M(OH)2Metal hydroxide + 2NH3 (M is Mg or Ca)

(vi) Indicator that turns deep pink when treated with NH4OH: Phenolphthalein

(vii) Products obtained by treating ammonia with excess chlorine: Nitrogen trichloride
NH3Ammonia + 3Cl2 excessChlorine gas NCl3Nitrogen trichloride + 3HCl

(viii) Basic gas that is used as a refrigerant: Ammonia

(ix) Solution used to remove fat grease: Ammonia solution

(x) Salt known as ammoniac: Ammonium chloride (NH4Cl)

(xi) Salt used to clean metal surfaces before soldering, tinning, etc.: Ammonium chloride

(xii) Ammonium salt used in explosive: Ammonium nitrate

(xiii) An acidic gas (chlorine gas) which reacts with a basic gas (ammonia) liberating neutral gas (nitrogen gas)
8NH3Ammonia excess + 3Cl2Chlorine gas N2Nitrogen gas + 6NH4ClAmmonium Chloride

(xiv) A nitride of divalent metal which reacts with hot water producing ammonia: Magnesium nitride

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