D and F Block Elements Test

Result

D and F Block Elements Test - 6

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Weekly Quiz Competition

Question 1
1 / -0

Roasting or calcination is not an essential step to extract metal from this ore–

A
Chalcocite

B
Galena

C
Argentite

D
Cerussite

Solution

Roasting or calcination is not an essential step for argentite since it converted into pure metal
Question 2
1 / -0

Purpose of coke in the blast furnace is

A
Fuel

B
alloying element

C
Reducing agent

D
A & C

Solution

In blast furnace,coke is used as a fuel as will as a reducing agent
Question 3
1 / -0

In zone refining, pure metal is obtained at the

A
Right end, if zone is travelling from left to right

B
Left end, if zone is travelling from left to right

C
Left end, if zone is travelling from right to left

D
Centre, if zone is travelling from any side

Solution

In zone refining, pure metal is obtained at the left end, if zone is travelling from left to right
Question 4
1 / -0

An alloy which does not contain copper is–

A
Solder

B
bronze

C
Brass

D
Bell metal.

Solution

Solder contains only Sn 67% Pb 33%
Question 5
1 / -0

The rock crushing machinery is made from this steel –

A
Chrome Vanadium

B
Manganese Steel

C
Stainless

D
Tungsten

Solution

Rock crushing machinery is made from manganese steel. Is is known for its high impact strength and resistance to abrasion once in its work-hardened state.