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Chemistry

Chemistry
Atoms having the same number of protons but different number of neutrons are called :

Cations
Higgs-boson
Isotopes
Anions

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Chemistry
The element used in the manufacture of safety matches is

Magnesium
Sulphur
Phosphorous
Silicon

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Chemistry
Which among the following coal contains 90 per cent of carbon?

Peat
Lignite
Bitumen
Anthracite

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Chemistry
Which of the following alloy is used in making magnet ?

Alnico
Magnalium
Duralumin
Stainless steel

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Chemistry
When formaldehyde and potassium hydroxide are heated, we get

Ethyl formate
Acetylene
Methane
Methyl alcohol

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Chemistry
The most commonly used chemicals in the artificial rainmaking or cloud seeding are

Dry Ice (Frozen CO2)
All of these
Silver Iodide (Ag I)
Sodium Chloride (NaCl)

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