Isolation of El...

Only One Option Correct Type

Direction (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

Q. 

In the electrolytic refining of zinc

When compared to ΔG° for the formation of Al₂O₃ the ΔG° for the formation of Cr₂O₃ is

During the extraction of gold the following reactions take place

Au + CN^- + H₂O  X,
X + Zn → Y + Au

Here, X and Y respectively are

Gold is extracted by hydrometallurgical process based on its property

During Hoope’s process for electrolytic refining of Al, the middle layer is of

Thermite is a mixture of iron oxide and 

Which is an alloy of aluminium?

Which one of the following metals has the largest abundance in the earth’s crust?

The processes used in the refining of aluminium and zinc metals respectively are

In sulphatizing roasting of ZnS products are

Matching List Type

Direction (Q. Nos. 11 and 12) Choices for the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d), out of which one is correct.

Q. 

Match the Column I with Column II and mark the correct option from the codes given below.

Match the Column I with Column II and mark the correct option from the codes given below.