Metals and non metals Worksheet-9
Multiple-Choice Question (One Option Correct):
(A) Coconut oil (B) Olive oil (C) Pine oil (D) None of these
(A) Roasting (B) Calcination (C) Smelling (D) Bassemerisation
(A) C (B) Al (C) Zn (D) None of these
(A) Electrolysis (B) Reducing by Aluminium
(C) Smelting (D) Auto reduction
(A) Calcium (B) Magnesium (C) Aluminium (D) All of these
(A) Thin & Trip of pure metal (B) Thick block of impure metal
(C) Graphite (D) Lead
(A) calcinations (B) roasting
(C) gravity separation (D) smelting
Answer key:
(C)
(A)
(A) Heating of metal oxide with carbon is called smelting.
(A) Calcium is a highly reactive metal so it is extracted by electrolysis of its molten chlorides or oxides.
(C)
(B)
(A)