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GS
GS Set-1
Chemistry
Inorganic Chemistry
173

Inorganic Chemistry MCQ with Answers

173) Which one of the following statements is wrong?

An acidified solution of K₂Cr₂O₇ liberates iodine from iodides

In acidic solution, dichromate ions are converted to chromate ions

Ammonium dichromate on heating, undergoes exothermic decomposition to give Cr₂O₃

Potassium dichromate is used as a titrant for Fe²⁺ ions

Answer is:

In acidic solution, dichromate ions are converted to chromate ions

Explanation:

In acidic soluiton, chromate is converted to dichromate.

Inorganic Chemistry MCQ with Answers

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174) Addition of iron fillings to CuSO₄ solution caused precipitation of Cu, owing to the:

Reduction of Cu²⁺

Oxidation of Cu²⁺

Reduction of Fe

Reduction of Fe³⁺

Answer is:

Reduction of Cu²⁺

175) Which is not amphoteric?

Al³⁺

Cr³⁺

Fe³⁺

Zn²⁺

Answer is:

Fe³⁺

176) Both acid and base may react with which of the following oxides?

CaO

Na₂O₂

ZnO

Mn₃O₄

Answer is:

ZnO

177) Cupric hydroxide dissolves in aqueous ammonia due to:

Reduction to cuprous hydroxide

Complex formation

Increase in pH

The amphoteric nature of Cu(OH)₂

Answer is:

Complex formation

Inorganic Chemistry MCQ with Answers

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173) Which one of the following statements is wrong?

In acidic solution, dichromate ions are converted to chromate ions

Inorganic Chemistry MCQ with Answers

Related Inorganic Chemistry MCQ with Answers

174) Addition of iron fillings to CuSO4 solution caused precipitation of Cu, owing to the:

Reduction of Cu2+

175) Which is not amphoteric?

Fe3+

176) Both acid and base may react with which of the following oxides?

ZnO

177) Cupric hydroxide dissolves in aqueous ammonia due to:

Complex formation

Inorganic Chemistry MCQ with Answers

174) Addition of iron fillings to CuSO₄ solution caused precipitation of Cu, owing to the:

Reduction of Cu²⁺

Fe³⁺