Permanent hardness of water may be removed by the addition of Sodium Carbonate.

The viscosity of a fluid is a measure of its resistance to deformation at a given rate. For liquids, it corresponds to the informal concept of "thickness".

Here in the given options, syrup has the highest viscosity.

Inquilab Zindabad means "Long live the revolution!". The slogan Inquilab Zindabad was given by Hasrat Mohani.

The council of ministers is collectively responsible to House of the People. Cabinet collective responsibility, also known as collective ministerial responsibility, is a constitutional convention in Parliamentary systems that members of the cabinet must publicly support all governmental decisions made in Cabinet, even if they do not privately agree with them.

The Sun is essentially all colors mixed together, which appear to our eyes as white. The brightest color emitted by the sun is yellow-green.