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Chemistry

Chemistry
The number of waves in n x 10th Bohr's orbit are

n3
n-2
n2
n

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Chemistry
Acid rain' is caused due to air - pollution by

Carbon monoxide
Nitrous oxide and sulphur dioxide
Methane
Carbon dioxide

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Chemistry
Milk is a colloidal system in which:

Fat is dispersed in water
Fat is dissolved
Water is dispersed in fat
Fat and water are dispersed in each other

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Chemistry
What is the most common salt in sea water ?

Potassium chloride
Magnesium sulphate
Sodium chloride
Calcium carbonate

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Chemistry
Chemical composition of cement is

Limestone, Clay and Gypsum
Clay and Gypsum
Limestone and Clay
Limestone and Gypsum

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Chemistry
Which among the following is liquid non-metal ?

Water
Alcohol
Mercury
Bromine

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MORE MCQ ON Chemistry

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