The metals like Na, K, Ca, Al are obtained by:

roasting

No worries! We‘ve got your back. Try BYJU‘S free classes today!

electrolytic reduction

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

calcination

No worries! We‘ve got your back. Try BYJU‘S free classes today!

simple heating

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B electrolytic reduction
Metals like sodium (Na), magnesium (Mg), calcium (Ca) and aluminium (Al) are very reactive. So, they are not available in free state and cannot be obtained from their compounds by simple heating. These metals cannot be obtained by roasting or calcination either. This is because these metals have more affinity for oxygen than carbon. Therefore, these metals are obtained only by electrolytic reduction.

Suggest Corrections

Similar questions

The metals like Na, K, Ca, Al cannot be obtained from their compounds by heating with carbon because their metals have more affinity for oxygen than carbon.

How many of the following metals are extracted by self reduction process?
$P b, A u, M g, S n, F e, A l, A g, H g, N a, Z n, C u, C a$

Choose the metals, from the following, that are obtained by electrolysis of their salts:

$A l, N a, C u, A g, M g, C a$

Q. Out of Al, Na, Cu and Ag; the following metals can be obtained by the electrolytic reduction of aqueous solution of their salts _____________.

Q. State True or False:
Metals like Na, K, Ca, Al cannot be obtained from their compounds by heating with carbon because their metals have a higher affinity for oxygen than they do for carbon.

Join BYJU'S Learning Program