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NEET UG CHEMISTRY MCQ: GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

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Consider the following statements-

(A) In theAluminothermite process, aluminium acts as reducing agent.

(B) The process of extraction of gold involves the formation of

\left[\mathrm{Au}(\mathrm{CN})_2\right]^{-}

and

\left[\mathrm{Zn}(\mathrm{CN})_4\right]^{2-}

.
(C) In the extractive metallurgy of zinc, partial fusion of

\mathrm{ZnO}

with coke is called sintering and reduction of ore to the molten metal is called smelting.

(D) Extractive metallurgy of silver from its ore argentine involves complex formation and displacement by more electropositive metal.

Choose the correct options-

View answer and explanation

Correct option: D

A, B, C and D

Option D is correct because all the statements (A, B, C, and D) are factually accurate regarding the extraction of metals.

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