JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Bredig's arc method cannot be used to prepare a colloidal solution of:

(A)Pt
(B)FeCorrect
(C)Ag
(D)Au

Answer: (B)

Solution

Bredig's arc method generates metal sols by striking an electric arc between metal electrodes immersed in the dispersion medium (usually water), and is suitable only for metals that do not react with water

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Question ID VK-145084