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Which of the following statements is fal...

Which of the following statements is false ?

A

In chlorine gas, the ratio of `""^(35)Cl` and `""^(37)Cl` is 1:3`

B

Hydrogen bomb is based on the principle of nuclear fusion

C

The atom bomb is based on the principle of nuclear fission

D

The penetrating power of proton is less than that of electron

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The correct Answer is:
A
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DINESH PUBLICATION-NUCLEAR AND RADIO CHEMISTRY-Revision Questions from Competitive Exams
  1. Half life of a radioactive substance is 60 min. After 3 hours, the fra...

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  2. In radioactive transformation ""(92)U^(235) to ""(82)Pb^(206) , the nu...

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  3. Which of the following statements is false ?

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  4. The composition of tritium is

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  5. Isotopes of elements were discovered by

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  6. The number of electrons in the nucleus of C^(12) is

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  7. In the reaction ltBrgt ""(7)N^(14) + ""(2)He^(4) to ""(a)X^(b) +""(1)H...

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  8. The radioactive decay of ""(35)X^(88) by a beta-emission produces an u...

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  9. After emission of one alpha particle followed by one beta-particle fro...

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  10. Heavy water is used as moderator in a nuclear reactor. The function of...

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  11. By removing , one beta-particle from a radio active nucleus, the atomi...

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  12. Which of the following is used as control rod ?

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  13. Which is used as moderator in nuclear reactor?

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  14. 1.0 g of a radioactive isotope left 125 mg after 24 hr. The half-life ...

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  15. A radioactive substance has a half life of 60 minutes. After 3 hours, ...

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  16. Which does not take place by alpha disintegration ?

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  17. A radioactive element X emits 3alpha , one beta and one gamma-particle...

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  18. Which is correct statement ?

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  19. Which is not emitted by radioactive substance ?

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  20. Positron is -

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