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Objective Questions
GS
GS Set-1
Chemistry
Inorganic Chemistry
178

Inorganic Chemistry MCQ with Answers

178) Potassium manganate is formed when:

Chlorine is passed into aqueous KMnO₄ solution

Manganese dioxide is fused with potassium hydroxide in air

Formaldehyde reacts with potassium permanganate in presence of a strong alkali

Potassium permanganate reacts with concentrated sulphuric acid

Answer is:

Manganese dioxide is fused with potassium hydroxide in air

Inorganic Chemistry MCQ with Answers

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Related Inorganic Chemistry MCQ with Answers

179) On addition of NH₄OH to a copper sulphate solution:

Blue precipitate of copper hydroxide is obtained

Black precipitate of copper oxide is obtained

A deep blue solution is obtained

No change is observed

Answer is:

A deep blue solution is obtained

180) Choose the correct option for transition elements:

They have low melting points

They do not have catalytic

They exhibit variable oxidation states

They exhibit inert pair effect

Answer is:

They exhibit variable oxidation states

181) What is the shape of Fe(CO)₅ molecule?

Tetrahedral

Octahedral

Trigonal bipyramidal

Square pyramidal

Answer is:

Trigonal bipyramidal

Explanation:

Fe is in a state of dsp³ hybridisation after pairing up to 8 electrons.

182) If NaOH is added to an aqueous solution of zinc ions, a white precipitate appears and on adding excess of NaOH, the precipitate dissolves. In this solution, zinc exists in the:

Cationic part

Anionic part

Both in cationic and anionic parts

There is no zinc in the solution

Answer is:

Anionic part

Inorganic Chemistry MCQ with Answers

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