Absolute Zero is defined as

• The temperature at which all molecular motion ceases

• At which water boils at 298K

• At which liquid Helium boils

• At which liquid Helium boils

32.

Which of the following has pH value 7?

• Pure Water

• H₂SO₄

• Sodium Carbonate

• Sodium Carbonate

When ice cubes are made, the entropy of water

• does not change

• decreases

• increases

• increases

At room temperature, the metal that remains liquid is

• mercury

• platinum

• lead

• lead

Which is known as carbolic acid?

• Phenol

• Ethanol

• Acetic acid

• Acetic acid

Among the given nutrients, milk is a poor source of which of the following?

• Vitamin 'C'

• Calcium

• Protein

• Protein

During fermentation of sugar, the compound which is always formed is

• Methyl Alcohol

• Ethyl Alcohol

• Acetic Acid

• Acetic Acid

Isolines joining places of equal rainfall are called...........

• Isohyets

• Isotherms

• Isobars

• Isobars

Which one of the following is commonly used for pulp bleaching in the paper industry?

• Mild sulphuric Acid

• Glucose isomerase

• Hydrogen peroxide

• Hydrogen peroxide

The molecular mass of a gas is ...........

• twice its vapour pressure

• equal to its vapour pressure

• half its vapour pressure

• half its vapour pressure