Materials: Metals and Non-Metals
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220
Which of the following non-metals is a liquid? (a) Sulphur (b) Phosphorus (c) Carbon (d) B...
By Rohit1998, 4 years ago
replies 1
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238
Electrical wires have a coating of insulating material. The material, generally used is (a...
By Rohit1998, 4 years ago
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252
Food cans are coated with tin and not with zinc because (a) zinc is costlier than tin (b) ...
By Rohit1998, 4 years ago
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233
Generally, non-metals are not conductors of electricity, which of the following is a good ...
By Rohit1998, 4 years ago
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193
Which of the following methods is suitable for preventing an iron frying pan from rusting?...
By Rohit1998, 4 years ago
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198
Which among the following alloys contain mercury as one of its constituents? (a) Alnico (b...
By Rohit1998, 4 years ago
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177
Which of the following is purest form of carbon? (a) Diamond (b) Graphite (c) Fullerenes (...
By Rohit1998, 4 years ago
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215
Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the foll...
By Rohit1998, 4 years ago
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251
In extraction of copper, the flux used is (a) FeO (b) SiO2 (c) CaO (d) FeSiO3
By Rohit1998, 4 years ago
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170
An alloy is (a) a compound (b) a heterogeneous mixture (c) a homogeneous mixture (d) an el...
By Rohit1998, 4 years ago
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