Extraction of uranium from its ore is done by __________ method.

Extraction of uranium from its ore is done using __________ methods.

A

chemical

B

pyrometallurgical

C

electrometallurgical

D

physical benefaction

Leaching of uranium ore and gold ore is done in

A

Centrifugal extractor

B

Pachuka tanks

C

Bollman extractor

D

None of these

Percentage of natural uranium present in uranium ore found in Jadugoda (Jharkhand) is

A

0.1

B

1

C

3

D

12

Enrichment of uranium is done to increase the concentration of __________ in the natural uranium.

A

U-235

B

U-233

C

U-238

D

PU-239

Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher

A

Melting point, hence can be subjected to higher temperature

B

Density ; hence core volume for a given power output would be smaller

C

Resistance to effects of irradiation

D

All of the above

In the gaseous diffusion process of uranium enrichment, the natural uranium is converted into gaseous

A

Uranium oxide

B

Uranium hexaflouride

C

Uranium carbide

D

Uranium sulphate

Which of the following is an undesirable property of slag produced during the pyrometallurgical method of metal extraction from its ore?

A

High fusibility & fluidity

B

High thermal conductivity

C

Low density

D

High chemical activity

Uranium is recovered from its ore (pitchblende) by

A

Froth floatation technique

B

Leaching with sulphuric acid

C

Smelting in a furnace

D

Dissolving in water

Electrometallurgy is not involved in the extraction of __________ from its ore.

A

Aluminium

B

Tin

C

Lead

D

Both B & C

Final product of uranium extraction plant at Jadugoda (Bihar) is

A

Uranium

B

Uranium oxide

C

Uranium carbide

D

Magnesium diuranate

Extraction of uranium from its ore is done by __________ method.

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