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Class 12 Chemistry Metallurgy General Principles and Processes of Isolation of Elements

Which of the following is correct processes ?

(a)

F e + A l_{2} O_{3} ⟶ 2 A l + F e_{2} O_{3}

(b)

Z n O + C ⟶ Z n + C O

(c)

C r_{2} O_{3} + 2 A l ⟶ 2 C r + A l_{2} O_{3}

(d)

2 [A g (C N)_{2}]^{-} + Z n ⟶ 2 A g + [Z n (C N)_{4}]^{2 -}

Correct answer: (b) (c) (d)

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general principles and processes of isolation of elements

metallurgical operations

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general principles and processes of isolation of elements

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Copyright FILO EDTECH PVT. LTD. 2021