Question

Goodmorning
Pls answer me
1 one

Answer 1

Here is your answer

i) Cu(OH)2

Answer 2

The base which is insoluble in water is ( i ) Cu(OH)₂

So the Correct option is ( i ) Cu(OH)₂

Cu(OH)₂ is the Copper( II ) Hydroxide

It is a pale greenish blue or bluish green solid.

Its Molar Mass is 97.561 g/mol

It has a density of 3.37 g/cm³

Its melting point is 80 °C

It is a weak base

The mineral of the formula Cu(OH)₂ is called Spertiniite

Copper(II) hydroxide is rarely found as an uncombined mineral because it slowly reacts with carbon dioxide from the atmosphere to form a basic copper(II) carbonate.

Thus copper slowly acquires a dull green coating in moist air by the reaction :-

2 Cu(OH)₂ + CO₂ → Cu₂CO₃(OH)₂ + H₂O