Tests for Copper(II) Ion

Write the probable colour of the aluminium salts?

Write the probable colour of the calcium salts?

Write the probable colour of the aluminium acetate.

Write the probable colour of the potassium nitrate salts.

What do you understand by the precipitation?

What is observed when adding ammonia to ${\mathrm{Cu}}^{2+}$ solution and why does this happen?

How does ammonia react with the solution of ${\mathrm{Cu}}^{+2}$?

What happens when hydrogen sulphide gas is passed through acidified copper sulphate solution?

Write the chemical reaction between copper sulphate and hydrogen sulphide in an acidic medium.

What changes occur on heating the mixture of copper sulphate with sodium hydroxide solution.

Write a chemical reaction between copper sulphate and sodium hydroxide.

The colour of the precipitate formed by the reaction copper sulphate with sodium hydroxide is _____.

The product formed by the reaction of Copper sulphate with sodium hydroxide is:

The pair of ions that can not be separated by ${\mathrm{H}}_2\mathrm{S}$ in the presence of dilute hydrochloric acid are

When aqueous solution of copper sulphate is added in excess of dilute $\mathrm{N}{\mathrm{H}}_4\mathrm{O}\mathrm{H}$ , an intense blue colour is obtained. This is due to formation of-

Among the following reagents, which one reagent can be used for differentiating $\mathrm{C}{\mathrm{u}}^{2+}$ and $\mathrm{B}{\mathrm{i}}^{3+}$?

Which precipitate will be obtained when a solution containing ${\mathrm{CrO}}_4^{2-}$ ions are added to the solution of ${\mathrm{Ba}}^{2+},{\mathrm{Sr}}^{2+}\mathrm{and}\mathrm{ }{\mathrm{Ca}}^{2+}$:

Which of the following is/are correct for potassium ferrocyanide?

$C{u}^{2+}$ and $C{d}^{2+}$ are distinguised through formation of complex ${\left[Cu{\left(CN\right)}_4\right]}^{2-}$ and ${\left[Cd{\left(CN\right)}_4\right]}^{2-},$ when $H_{2}S$ is passed there is:

In an acidified aqueous solution of $M{n}^{2+},N{i}^{2+},C{u}^{2+}$ and $H{g}^{2+}$ ions, $H_{2}S$ gas was passed. Precipitates are