Formation of volatile $N i (C O)_{4}$ and its subsequent heating gives pure Ni. This process is called

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Mond

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Solution

The correct option is D Mond
The process is known as Mond process.
It is used for refining Ni.
Nickel is heated in a stream of carbon monoxide forming a volatile complex, nickel tetracarbonyl
$N i + 4 C O 330 - 350 K ⟶ N i {(C O)}_{4}$
The carbonyl is heated to get pure metal.
$N i + {(C O)}_{4} 450 - 470 K ⟶ N i + 4 C O$

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Similar questions

Q. Formation of

N i (C O)_{4}

and its subsequent decomposition into Ni and CO (recycled) makes basis of Mond's process.

N i + 4 C O T_{1} - \to N i (C O)_{4} T_{2} - \to N i + 4 C O

T_{1}

and

T_{2}

are:

Formation of $N i (C O)_{4}$ and subsequent its decomposition into Ni and CO (recycled) makes the basis of Mond's process $N i + 4 C O_{1} N i (C O)_{4}_{2} N i + 4 C O$

$T_{1}$ and $T_{2}$ are:

Q. Impure metal forms a volatile compound (X) with CO then on heating (X) gives pure metal.

The Metal is :

N i + 4 C O \to N i (C O)_{4}

Calculate the amount of Ni needed in the Mond's process given below if CO used in this process is obtained through a process, in which 6 g of carbon is mixed with 44 g

C O_{2}

Q. Discuss the formation of coal in detail. What is this process called?

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Formation of volatile Ni(CO)4 and its subsequent heating gives pure Ni. This process is called

The correct option is D MondThe process is known as Mond process.It is used for refining Ni.Nickel is heated in a stream of carbon monoxide forming a volatile complex, nickel tetracarbonylNi+4CO330−350K⟶Ni(CO)4The carbonyl is heated to get pure metal.Ni+(CO)4450−470K⟶Ni+4CO

Formation of volatile $N i (C O)_{4}$ and its subsequent heating gives pure Ni. This process is called