Question
Which of the following soil is very good in
retentive of moisture and swells greatly and becomes sticky when wet in rainy season?Solution
The black soil is very retentive of moisture. It swells greatly and becomes sticky when wet in rainy season. Under such conditions, it is almost impossible to work on such soil because the plough gets stuck in the mud.
Chemical name of bleaching powder is
Wood spirit is
Urea is a —
When a spoon is to be electroplated with nickel the spoon is
The chiefsource for the production of nitrogeneous fertilizers is :
Which of the inert gases can form compounds?
Mercury is a :
Of the following which one pollutes the air of abig city?
Which type of fire extinguisher is used for petroleum fire?
The chemical bahaviour of an atom depends upon