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in Chemistry by (144 points)
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Which of the following is an amphoteric hydroxide? 

(1) Sr(OH)2  

(2) Ca(OH)2  

(3) Mg(OH)2  

(4)  Be(OH)2

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1 Answer

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by (323k points)

The correct option is (4) Be(OH)2.

Explanation:

Basic nature of hydroxides of alkaline metals -  

Except Be(OH)2 all hydroxides are basic in nature. this character increases down the group  

- wherein  

Due to weak M-OH bond which break easily heterolytically to yield OH-  

As we know that  Be(OH)2 is emphoteric in nature ehile rest all alkaline earth metal hydroxide are basic in nature.

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