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Chemistry

Chemistry
________ gives hardness to stainless steel.

Zinc
Carbon
Tin
Lead

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Chemistry
Electric fuse is an alloy of

Copper and iron
Carbon and tin
Tin and lead
Zinc and lead

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Chemistry
Percentage of carbon in steel ranges from

1.5 to 3.0
4.0 to 6.0
3.0 to 4.0
0.1 to 1.5

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Chemistry
Wood spirit is

Butyl alcohol
Propyl alcohol
Methyl alcohol
Ethyl alcohol

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Chemistry
The liquid waste from kitchens and baths, of residences is known as :

Refuse
Sullage
Domestic sewage
Storm water

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Chemistry
Glycol is added to aviation gasoline because it

Reduces consumption of petrol
Prevents freezing of petrol
Increases efficiency of petrol
Reduces evaporation of petrol

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