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The decreasing order of strength of the ...

The decreasing order of strength of the bases, `OH^(-), NH_(2)^(-), H-C-=C^(-)` and `CH_(3)-CH_(2)^(-)`:

A

`CH_(3)-cH_(2)^(-) gt NH_(2)^(-) gt H-C -=C^(-)`

B

`H-C-=C^(-) gt CH_(3)-CH_(2)^(-) gt NH_(2)^(-)gt OH^(-)`

C

`OH^(-) gt NH_(2)^(-) gt H-C-=C^(-) gt CH_(3)-CH_(2)`

D

`NH_(2)^(-) gt H-C-=C^(-) gt OH^(-) gt CH_(3)-CH_(2)`

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The correct Answer is:
A
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