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In Poling process of purification of Cu,...

In Poling process of purification of `Cu, O_(2)` oxidises following group of elements.

A

S,Sb,As

B

Sb,As,Fe

C

S,Sb,As

D

As,Ag,Au

Text Solution

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The correct Answer is:
A,B,C
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Answer the following : (a) Name of element of group 13 which forms the most stable compound in +1 oxidation state. (b) Name the element of group 13 which has the highest first ionisation enthalpy. ( c) Name the element of group 13 which is used as a reducing agent in metallurgical processes. (d) Name of element of group 13 which can show convalency maximum of four only. Name the compound of aluminium which is used as a germicide and coagulant of the purification of water. (f) Name the first two elements of group 13 .

STATEMENT-1 : Poling is used in purification of Cu from its oxide. STATEMENT-2 : Coke cannot reduce CuO to Cu but gree wood can reduce. STATEMENT-3 : Sn is also purified by poiling process.