Amphoteric hydroxides react with both alkalies and acids.Which of the following group 2 metal hydroxides is soluble in sodium hydroxide?

B e (O H)_{2}

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R a (O H)_{2}

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C a (O H)_{2}

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B a (O H)_{2}

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Solution

The correct option is A $B e (O H)_{2}$
$B e (O H)_{2}$ is an amphoteric hydroxide.

With acids, $B e (O H)_{2}$ is neutralized giving salts,
$B e (O H)_{2} + 2 H C l \to B e C l_{2} + 2 H_{2} O$

$B e (O H)_{2}$ reacts with $N a O H$ also forming beryllate,
$B e (O H)_{2} + 2 N a O H \to N a_{2} B e O_{2} + 2 H_{2} O$

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Similar questions

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. When aluminium hydroxide is reacted with excess sodium hydroxide, the soluble amphoteric compound is formed. Mark the correct formula.

Q. A metal salt (M) on reacting with sodium hydroxide forms sodium sulphate and a gelatinous white precipitate of a metal hydroxide. The precipitate is soluble in excess of sodium hydroxide. Identify M.

Q. Which of the following statements are correct from the given statements?
(i)

B F_{3}

is acid according to Lewis theory
(ii) Sodium hydroxide and potassium hydroxide are soluble in water.
(iii) Calcium hydroxide and magnesium hydroxide are partially soluble in water.
(iv) All metallic hydroxides react with bases to form their respective metallic salts.

Zinc oxide reacts with $C a {(O H)}_{2}$ and $H_{2} S O_{4}$ , thus it is a/an ________.

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Amphoteric hydroxides react with both alkalies and acids.Which of the following group 2 metal hydroxides is soluble in sodium hydroxide?

The correct option is A Be(OH)2Be(OH)2 is an amphoteric hydroxide. With acids, Be(OH)2 is neutralized giving salts,Be(OH)2+2HCl→BeCl2+2H2O Be(OH)2 reacts with NaOH also forming beryllate,Be(OH)2+2NaOH→Na2BeO2+2H2O