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Chemistry

Chemistry
Sweat contains water and ________

Salt
Vinegar
Citric acid
Lactic acid

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Chemistry
0.01 mole of NaOH is added to 10 liters of water. The pH of water changes by

6
7
4
3

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Chemistry
'Plaster of Paris' is made by partial dehydration of

Green vitriol
Blue vitriol
Gypsum salt
Epsom salt

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Chemistry
Commercial nitric acid is coloured because it contains dissolved :

Nitrous oxide
Oxygen
Coloured impurities
Nitrogen dioxide

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Chemistry
Which of the following is used as anesthetic ?

NH3
NO2
NO
N2O

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Chemistry
Sulphur dioxide level in the atmosphere can be reduced by using

Catalytic converters in industry
Low - sulphur fuels
Static electricity to attract it in factory chimneys
More efficient car engines

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MORE MCQ ON Chemistry

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