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Is it true that copper hydroxide ( ${Cu (OH)}_{2}$ ) and zinc hydroxide ( ${Zn (OH)}_{2}$ ) are strong bases?

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True

False

answer is B.

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Detailed Solution

The above statement is false.
Like acids, bases can be strong and weak. Weak bases are not so corrosive. Weak bases are copper hydroxide [

{Cu (OH)}_{2}

], zinc hydroxide [

{Zn (OH)}_{2}

], and ammonium hydroxide (

{NH}_{4} OH

). Ammonium hydroxide is produced from dissolving ammonia (

{NH}_{3}

) in water. Copper hydroxide and Zinc hydroxide are weak bases.
The corrected statement would be, “Copper hydroxide (

{Cu (OH)}_{2}

) and zinc hydroxide (

{Zn (OH)}_{2}

) are weak bases”.

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