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Objective Questions
GS
GS Set-1
Chemistry
Inorganic Chemistry
212

Inorganic Chemistry MCQ with Answers

212) In alumino−thermite process, aluminium is used as:

Oxidising agent

Flux

Reducing agent

Solder

Answer is:

Reducing agent

Inorganic Chemistry MCQ with Answers

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Related Inorganic Chemistry MCQ with Answers

213) Silver obtained from argentiferrous lead containing lead impurity is purified by:

Distillation

Froth floatation

Cupellation

Treatment of KCN

Answer is:

Cupellation

214) Mond−s process is used for preparing:

Ni

H₂SO₄

NH₃

HNO₃

Answer is:

Ni

215) Which of the following does not have optical isomer?

[Co(en)(NH₃)₂Cl₂]Cl

[Co(en)₂Cl₂]Cl

[Co(NH₃)₂−Cl₃]

[Co(en)₃]Cl₃

Answer is:

[Co(NH₃)₂−Cl₃]

216) NH₃ forms complex ion [Cu(NH₃)₄]SO₄ with CuSO₄ in alkaline solution, but not in acidic solution because:

Cu²⁺ is hydrated in acidic medium

Cu(OH)₂ is formed in alkaline solution which dissolves in NH₃ (excess)

NH₃ is protonated to form NH₄⁺ in acidic medium, therefore, pair of electrons is no more available for coordination

Cu(OH)₂ is amphoteric

Answer is:

NH₃ is protonated to form NH₄⁺ in acidic medium, therefore, pair of electrons is no more available for coordination

Inorganic Chemistry MCQ with Answers

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