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Chemistry

Chemistry
Which of the following is not a nucleon?

Proton
Electron
Neutron
Positron

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Chemistry
Natural rubber is a polymer of

Propene
Vinyl acetate
Isoprene
Styrene

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Chemistry
Gobar gas contains mainly :

Methane
Ethylene
Acetylene
Propylene

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Chemistry
Which of the following kinds of spectroscopy can provide information on the energy difference between the initial and final states rather the energy levels involved in the transition

Infrared absorption spectroscopy
UV photoelectron spectroscopy
UV absorption spectroscopy
Rotational spectroscopy

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Chemistry
The element absorbed both in cation and anion form is

Phosphorus
Sulphur
Calcium
Nitrogen

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Chemistry
Water can be separated from alcohol water mixture by

Sublimation
Decantation
Distillation
Evaporation

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