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CHEMISTRY

Chemistry
Bauxite is an alloy of which of the following metals ?

Silver
Tin
Aluminium
Iron

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Chemistry
Hard steel contains

0.1 to 0.4 per cent carbon
0.5 to 1.5 per cent carbon
0.01 to 0.04 per cent carbon
2 to 5 per cent carbon

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Chemistry
The purest form of Iron is :

Steel
Pig iron
Cast iron
Wrought iron

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Chemistry
Which one of the following contains maximum percentage of carbon ?

Stainless steel
Wrought iron
Cast iron
High speed steel

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Chemistry
Stainless steel is an alloy of

Chromium, carbon and iron
Chromium and iron
Chromium and carbon
Carbon and iron

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