Which of the following isotopes is not present in natural uranium?

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

A

0.1

B

1

C

3

D

12

In natural uranium, the constituents of three naturally occurring isotopes are

A

U₂₃₄ = 0.006%, U₂₃₅ = 0.712% and U₂₃₈ = 99.282%

B

U₂₃₄ = 0.712%, U₂₃₅ = 0.006% and U₂₃₈ = 99.282%

C

U₂₃₄ = 99.282%, U₂₃₅ = 0.006% and U₂₃₈ = 0.712%

D

U₂₃₄ = 0.006%, U₂₃₅ = 99.282% and U₂₃₈ = 0.712%

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

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

Uranium has isotopes

A

U₂₃₄

B

U₂₃₅

C

U₂₃₈

D

All of these

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

Natural uranium is made up of

A

U₂₃₄ = 0.006%, U₂₃₅ = 0.712% and U₂₃₈ = 99.282%

B

U₂₃₄ = 0.712%, U₂₃₅ = 0.006% and U₂₃₈ = 99.282%

C

U₂₃₄ = 99.282%, U₂₃₅ = 0.006% and U₂₃₈ = 0.712%

D

U₂₃₄ = 0.006%, U₂₃₅ = 99.282% and U₂₃₈ = 0.712%

The most abundant isotope of natural uranium is

A

₉₂U²³⁸

B

₉₂U²³⁵

C

₉₂U²³⁴

D

None of these

CANDU type nuclear reactor using natural uranium as fuel is the extensively used nuclear reactor because of the fact that the

A

Specific fuel consumption is very low due to the use of heavy water

B

Fuel cost is much lower than that used in pressurised water or boiling water reactor

C

Heavy water is used both as coolant as well as moderator

D

Both B and C

Natural gas recovered along with crude oil from oil wells is called wet natural gas which has a higher __________ compared to the dry natural gas.

A

Unsaturated hydrocarbon content

B

Calorific value

C

Quantity of propane

D

Quantity of butane

Which of the following isotopes is not present in natural uranium?

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