Which of the following hydroxides is most basic?

B e (O H)_{2}

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B a (O H)_{2}

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C a (O H)_{2}

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M g (O H)_{2}

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Solution

The correct option is A $B a (O H)_{2}$
On moving down a group, the metallic character increases(due to increase in atomic size) and thus the basic strength of metal hydroxides also increases. Except $B e (O H)_{2}$ which is atmospheric in nature, other $M (O H)_{2}$ are basic in nature. The basic strength increases from $B e (O H)_{2}$ to $B a (O H)_{2}$ .

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Similar questions

Q. Find the number of amphoteric hydroxide(s) from the following :

B e (O H)_{2}, M g (O H)_{2}, A l (O H)_{2}, L i O H, B (O H)_{3}, Z n (O H)_{2}

Q. Which of the following sequence(s) is/are correct for solubility in

H_{2} O ?

(1) B e S O_{4} > M g S O_{4} > C a S O_{4} > B a S O_{4}

(2) B e (O H)_{2} > M g (O H)_{2} > C a (O H)_{2} > B a (O H)_{2}

(3) L i O H < N a O H < K O H < R b O H

(4) L i_{2} C O_{3} < N a_{2} C O_{3} < K_{2} C O_{3} < R b_{2} C O_{3}

Amploteric hydroxides react with both alkalies and acids. Which of the following Group 2 metal hydroxides is soluble in sodium hydroxide?
(a) $B e (O H)_{2}$ (b) $M g (O H)_{2}$ (c) $C a (O H)_{2}$ (d) $B a (O H)_{2}$

Q. Which of the following forms the most basic hydroxide?

Q. Which of the following sequence is correct for solubility in

H_{2} O

?
(1)

B e S O_{4} > M g S O_{4} > C a S O_{4} > B a S O_{4}

(2)

B e (O H)_{2} > M g (O H)_{2} > C a (O H)_{2} > B a (O H)_{2}

(3)

L i O H < N a O H < K O H < R b O H

(4)

L i_{2} C O_{3} < N a_{2} C O_{3} < K_{2} C O_{3} < R b_{2} C O_{3}

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