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Question
Complete the incomplete statement with missing word:
Metals are malleable while non-metals are ______.
Solution
Metals are malleable while non-metals are non-malleable.
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Roasting
Oxides of moderately reactive metals like Zinc, Iron, Nickel, Tin, Copper, etc. are reduced by using:
Assertion (A): The extraction of metals from their sulphide ores cannot take place without roasting the ore.
Reason (R): Roasting converts sulphide ores directly into metals.
