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The moderator used in nuclear reactor is...

The moderator used in nuclear reactor is

A

`H_(2)O`

B

`D_(2)O`

C

Graphite

D

Boron

Text Solution

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The correct Answer is:
B, C
Heavy water `(D_(2)O)`or graphite is generally used as moderator in nuclear reactors.
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DINESH PUBLICATION-NUCLEAR AND RADIO CHEMISTRY-Selected Straight Objected Type MCQs
  1. Control rods used in nuclear reactor are made of

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  2. The moderator used in nuclear reactor is

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  3. In a nuclear reactor, heavy water is used to a)Increase the speed of n...

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  4. The fissionable material commonly used in atomic bomb is (are)

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  5. Nuclear fusion is the source of energy in

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  6. The nuclear reactions accompanied with emission of neutron (s) are

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  7. Decrease in atomic number is observed during a)alpha-emission b)beta-...

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  8. Radium has atomic weight 226 and a half-life of 1600 Yr. The number of...

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  9. The activity of radionuclide (""^(100)X) is 6.023 curie. If the disint...

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  10. The half life of a radioactive substance is 24 hours. Time required f...

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  11. ""(91)Pa^(234) an element of group 3 emits beta-particles, the daughte...

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  12. The mass of an atom of ""(2)He^(4) is 4.0026 amu . The mass of a neutr...

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  13. ""(92)^(233)U is assumed to decay by emitting alpha- and beta-particle...

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  14. ""(92)^(238)U emits an alpha-particle, the product has the atomic and ...

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  15. The radiation from naturally occuring radioactive substance as seen af...

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  16. An isotone of .(32)^(76)Ge is- (a) .(32)^(77)Ge (b).(33)^(77)As (c).(...

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  17. The half- life periof of a radioactive element is 140 days. After 560 ...

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  18. The triad of nuclei that is isotonic is

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  19. .(7)N^(13) changes to .(6)C^(13) by the emission of

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  20. The nucleus resulting from ""(92)U^(238) after successive emission of ...

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