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Question

Which is the strongest base that can exist in water?

A
NH2
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B
HO
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C
NH3
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D
CH3CH2
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Solution

The correct option is B HO
Both NH2 and CH3CH2 are stronger base than HO because O is more electroneagtive than N and C, so it will hold the negative charge more strongly. NH2 and CH3CH2 will be neutralized quantitatively by water, therefore will not survive in water.

NH2+H2ONH3+HOCH3CH2+H2OCH3CH3+HO

Therefore, the strongest among given base that can survive in water without reacting is HO

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