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Chemistry

Chemistry
The number of moles of solute present in 1 kg of a solvent is called its

molarity
normality
molality
formality

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Chemistry
In a period from Li to F, ionisation potential

Increases
Remains same
Decreases
Cannot be predicted

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Chemistry
Which one of the following elements is least likely to be found in commercial fertilisers?

Nitrogen
Potassium
Silicon
Phosphorous

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Chemistry
What is the mass percentage of oxygen in carbon dioxide (CO2)

0.658
0.727
0.305
0.509

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Chemistry
The cathode of a lead storage battery is made up of

Lead
Manganese dioxide
Zinc
Lead oxide

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Chemistry
Which of the following partial miscible liquid pairs has both lower and upper critical solution temperature

Aniline and n-hexane
Glycerine and m-toluene
Water and Phenol
Water and diethyl aniline

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