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Chemistry

Chemistry
Atomic number is the number equal to

Neutrons
Protons
Electrons
None of these

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Chemistry
The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is

4.05 gram
5.05 gram
2.05 gram
3.05 gram

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Chemistry
The chief constituent of vinegar is

Formic acid
Salycylic acid
Acetic acid
Oxalic acid

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Chemistry
The percentage of carbon in cost iron is :

3 to 5
0.01 to 0.25
0.5 to 1.5
6 to 8

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Chemistry
The major constituent of gobar gas is

Methane
Isobutane
Butane
Carbon dioxide

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Chemistry
Two elements which can form a large number of compounds are

Carbon and Hydrogen
Carbon and Sulphur
Carbon and Oxygen
Carbon and Nitrogen

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