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
(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.