Question
The hardness of water is usually expressed in terms of
what unit?Solution
Water hardness is typically measured in parts per million (ppm) of calcium carbonate, reflecting the concentration of calcium and magnesium ions.
Bakelite is a copolymer of Phenol and
In addition to hydrogen the other abundant element present on Sunsurface is
Spirit in contact with body gives cool sensation because it is:
Which one of the following is an example of a gel?
Which one of the following elements is used in the manufacture of fertilizers?
Which of the following processes is used for the production of Biodiesel?Β
Which of the following is used to increase the antiknocking property of petrol?
One property of ammonia isΒ
Which one of the following is not a greenhouse gas?Β
Which one of the following is known as the brown coal?