Dr. Parul Srivastava Solutions for Chapter: Metals and Non-metals, Exercise 9: PRACTICAL SKILL BASED MCQs

Which one is an alkali amongst the chemicals given below?

The colour of calcium oxide is

When we start heating a mixture of sulphur powder and iron filings, we would observe that

$10 \mathrm{mL}$ of freshly prepared iron sulphate was taken in each of four test tubes. Strips of copper, iron, zinc and aluminium were introduced in a different test tube. A black residue was obtained in two of them. The right pair of metals forming the precipitates is

The colour of ${\mathrm{NO}}_2$ and $\mathrm{PbO}$ formed when lead nitrate is heated are

When you place iron nail in copper sulphate solution, the reddish-brown coating formed on the nail is

On heating ferrous sulphate crystals, one would get

What happens when dilute hydrochloric acid is added to iron filings?