Inorganic Chemistry MCQ with Answers

Inorganic Chemistry MCQ with Answers

116) The maximum percentage of available chlorine on the basis of CaOCl₂.H₂O formula is:

Answer is:

49

Explanation:

(71 ⁄ 145) x 100 = 49

117) In which of the following pairs, are the two species iso structural?

Answer is:

BF₃ and NF₃

118) When a white hygroscopic powder X is treated with cold water, a compound Y is formed, which forms a white precipitate with BaCl₂ in acidic medium. Y also gives a white amorphous precipitate with neutral AgNO₃. Compound Y can also be obtained by heating H₃PO₄. X and Y are:

Answer is:

P₄O₁₀ and H₃PO₂

119) A compound A of S, Cl and O has a vapour density of 67.5. It reacts with water to form two acids and reacts with KOH to form two salts B and C. B gives white precipitate with AgNO₃ solution and C gives white precipitate with BaCl₂ solution. Identify A.

Answer is:

None of these

120) When Cl₂ is passed through hot conc. NaOH, salts A and B are formed, which are separated by fractional crystallization. When B is treated with a calculated amount of KCl, a substance C is produced. When C is gently heated, it disproportionates to give D and E. When E is heated with conc. H₂SO₄, the strongest Bronsted acid F is formed, which is isoelectronic with H₂SO₄. Identify F.

Answer is:

HCl

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