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Q.

Which of the following is the strongest base?

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a

$C_{2} H_{5}^{-}$

b

$C_{2} H_{5} {COO}^{-}$

c

$C_{2} H_{5} O^{-}$

d

${OH}^{-}$

answer is A.

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Detailed Solution

Acidic strength,

$C_{2} H_{6} < C_{2} H_{5} OH < H_{2} O < C_{2} H_{5} COOH .$

Because it totally dissociates into sodium ions and hydroxide ions, sodium hydroxide is the strongest base.

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