Few elements are given as follows :
Cr, Mn, Pb, Cu, Al, Na, Mg, Zn, Hg
(P) Number of elements whose extraction done by self reduction process.
(Q) Number of metals whose extraction is done by electrolytic reduction process.
(R) Number of metals whose purification is done by distillation.
Give your answer (P + Q + R).

Question

Few elements are given as follows :

Cr, Mn, Pb, Cu, Al, Na, Mg, Zn, Hg

(P) Number of elements whose extraction done by self reduction process.

(Q) Number of metals whose extraction is done by electrolytic reduction process.

(R) Number of metals whose purification is done by distillation.

Give your answer (P + Q + R).

TestHub · Accepted Answer

P ⇒ Pb , Hg , Cu ​ Q ⇒ Al , Na , Mg ​ R ⇒ Zn , Hg ​ So, P = 3 , Q = 3 & R = 2 . So the answer is 3 + 3 + 2 = 8 .

Chemistry - Metallurgy Question with Solution | TestHub