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Chemistry

Chemistry
Which one of the following is most electronegative

Tin
Silicon
Lead
Carbon

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Chemistry
Two moles of an ideal gas expand freely into vacuum. The work done by the gas is

2J
Infinity
4J

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Chemistry
The number of electrons presents in H+ is

two
one
three
zero

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Chemistry
For extinguishing fire, we use

Carbon Monoxide
Carbon Dioxide
Hydrogen
Marsh gas

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Chemistry
The nuclear particles which are assumed to hold the nucleons together are

mesons
positrons
electrons
neutrons

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Chemistry
Aspirin is common name of

Salicylate
Acetyl Salicylic Acid
Salicylic Acid
Methyl Salicylate

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