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Chemistry

Chemistry
Brass is a

Element
Compound
Homogeneous mixture
Heterogeneous mixture

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Chemistry
Normal rainwater has a pH level of

3.2
5.6
6.3
8.3

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Chemistry
Which of the following is used to remove rust stains on cloth?

Lime
Oxalic acid solution
Petrol
Kerosene

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Chemistry
An alloy used in making heating elements for electric heating device is

Solder
Alloy Steel
German Silver
Nichrome

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Chemistry
Sulphuric acid is

Tetrabasic
Tribasic
Dibasic
Monobasic

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Chemistry
Which is abundant in Gobar gas?

Methane
Hydrogen
Carbon dioxide
Oxygen

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