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An isotope of ""^(231)Th can be converte...

An isotope of `""^(231)Th` can be converted into `""^(227)Th` by the emission of :

A

one `beta-`particle

B

one `alpha`-particle

C

two `alpha-` and two `beta`-particles

D

one `alpha`- and two `beta`-particles.

Text Solution

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The correct Answer is:
D
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MODERN PUBLICATION-NUCLEAR CHEMISTRY-Multiple Choice Questions
  1. Which of the following nuclei is unstable ?

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  2. The activity of radioactive isotope decreases with:

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  3. An isotope of ""^(231)Th can be converted into ""^(227)Th by the emiss...

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  4. The reaction : ""(1)^(2)D+""(1)^(3)Tto""(1)^(2)He+""(0)^(1)n is an e...

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  5. The artificial radioactivity was first discovered by:

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  6. With time, the rate of radioactive disintegration :

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  7. Which of the following transformations is not correct?

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  8. Which of the following transformations is n p type ?

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  9. In the reaction : ""(93)^(239)Npto""(94)^(239)Pu+? The missing par...

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  10. During alpha-decay, n/p ratio :

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  11. The change ""(15)^(30)Pto""(14)^(30)Si requires the emission of :

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  12. Which of the following is used in dating archaeolo gical findings?

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  13. The missing nucleide in the nuclear reaction : ""(93)^(239)Npto........

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  14. Which of the following radiations can be easily stopped by air?

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  15. Meson was discovered by :

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  16. Neutrino can be detected during the emission of:

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  17. In a neutron induced reaction of ""(93)^(235)U, one of the products is...

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  18. The missing projectile in the reaction : ""(1)^(2)H+?to""(1)^(1)H+""...

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  19. In the nuclear reaction ""(42)^(96)Mo +"".......to""(43)^(97)Tc+""(0)^...

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  20. Packing fraction is related to :

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