Earn $100 Online Daily. Work From Home. Click Here

What is the correct answer?


Permanent hardness of water can be removed by adding

A. Potassium Permanganate

B. Bleaching Powder

C. Chlorine

D. Washing Soda

Related Questions

The chemial name of Uria is The type of glass used in making prisms and lenses is Old-written material, which cannot be read easily can be read by Permanent hardness of water can be removed by adding Pollination by birds is called Bromine is Which of the following elements is non-radioactive? Brass gets discoloured in air due to the presence of which gas in air In a certain electronic circuit the output is positive if input 1 is positive… Lightening cause rainfall because Polythene is industrially prepared by the polymerisation of The major ingredient of leather is The marine animal called dugong which is vulnerable to extinction is a/an The smallest functional and structural unit of kidney is called as Glass is made from the mixture of The metal used in storage batteries Which of the following elements is obtained from sea weeds ? The recent atomic weight scale is based on Apparatus invented by Archimedes is : In an atomic nucleus, neutrons and protons are held together by Which of the following is most likely to cause a rise in the average temperature… Which of the following items will be attracted to the north pole of a… The location and energy of an electron in an atom can be specified by The speed of light with the rise in the temperature of the medium Water has maximum density at The property of a substance to absorb moisture from the air on exposure… The solar eclipse occurs when The metal that is present in Photo Films is Quartz crystals normally used in quartz clocks etc. is chemically When a gas is turned into a liquid, the process is called