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Consider the following decay .(Z)^(A)Xra...

Consider the following decay `._(Z)^(A)Xrarr_(Z+1)^(A)Y+_(-1)^(0)e,X` is unstable because:

A

its nucleus has excess energy

B

`(n)/(p)` ratio is high

C

`(n)/(p)` ratio is low

D

none of these

Text Solution

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The correct Answer is:
B
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NARENDRA AWASTHI-CHEMICAL KINETIC & NUCLEAR CHEMISTRY-Level 1 (Q.93 To Q.122)
  1. In the radioactive decay {:(.(z)X^(A) rarr (Z+1)Y^(A)rarr(Z-1)Z^(A-4...

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  2. A radioactive nuclide emitts gamma- rays due to the :

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  3. Consider the following decay .(Z)^(A)Xrarr(Z+1)^(A)Y+(-1)^(0)e,X is un...

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  4. Consider the following decay .(Z)^(A)Xrarr(Z-1)^(A)Y+(+1)^(0)e,(beta^(...

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  5. Which of the following emissions do not cause the emission of X-ray ?

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  6. Which of the following processes result in an increase in the atomic n...

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  7. ………. Is produced when a positron and an electron collide.

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  8. .(67)^(165)Ho is stable isotope. .(67)^(150)Ho is expected to distegra...

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  9. 1^(1)H is a stable isotope . 1^(3)H is expected to disintegrated by :

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  10. Emission of beta -particle is equivatent to:

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  11. Pair of isobar is :

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  12. The 'group displacement law' was given by :

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  13. .(3)^(7)Li + (1)^(1)P rarr X, Identify X if reaction is (p,alpha) type...

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  14. Identify reaction type: .(13)^(27)Al+(1)^(2)H rarr (13)^(28)Al+(1)^(...

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  15. .(13)^(27)Al+(1)^(1)P rarr X +(0)^(0)gamma, type artifical radioactive...

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  16. What will be the product of reaction .(101)^(255)Md(alpha,2n)?

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  17. .(92)^(235)U+(0)^(1)n rarr (56)^(139)Ba +(36)^(94)Kr +3(0)^(1)n+200MeV...

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  18. Proton bombardment on Th^(230) followed by emission of two alpha parti...

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  19. .(83)^(214)Bi decays to A by alpha -emission . A then decays to B by b...

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  20. The activity of a radionuclide (X^(100)) is 6.023 curie . If the disin...

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