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Reactions of Aryl Amines (Diazo Salts)

44. In which ...

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44. In which of the following acid-base titration, pH is greater than 8 at equivalence point? (1) Acetic acid versus ammonia (2) Acetic acid versus sodium hydroxide (3) Hydrochloric acid versus ammonia (4) Hydrochloric acid versus sodium hydroxide

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Q. Explain the action of phenolphthalein indicator in the titration of acetic acid versus sodium hydroxide.

Q. In the following strong acid and strong alkaine base is-
(a) Acetic Acid or Hydrochloric Acid
(b) Sodium hydroxide or calcium hydroxide

Q. A buffer solution can be prepared from a mixture of:
(i) Sodium acetate and acetic acid in water
(ii) Sodium acetate and hydrochloric acid in water
(iii) Ammonia and ammonium chloride in water
(iv) Ammonia and sodium hydroxide in water

Identify the odd one out and justify.

(a) Chloride, nitrate, hydride, ammonium

(b) Hydrogen chloride, sodium hydroxide, calcium oxide, ammonia

(c) Acetic acid, carbonic acid, hydrochloric acid, nitric acid

(d) Ammonium chloride, sodium chloride, potassium nitrate, sodium sulphate

(e) Sodium nitrate, sodium carbonate, sodium sulphate, sodium chloride

(f) Calcium oxide, magnesium oxide, zinc oxide, sodium oxide.

(g) Crystalline blue vitriol, crystalline common salt, crystalline ferrous sulphate, crystalline sodium carbonate.

(h) Sodium chloride, potassium hydroxide, acetic acid, sodium acetate.

Q. Classify the following substances which are Non electrolytes.

Acetic acid, ammonium chloride, ammonium hydroxide, carbon tetrachloride, dilute hydrochloric acid, sodium acetate, dilute sulphuric acid.

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Reactions of Aryl Amines (Diazo Salts)

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