Q. Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about __________ percent.

View solution

Q. Absorption of SO₃ in 97% H₂SO₄ is

View solution

Q. __________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

View solution

Q. Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the

View solution

Q. The catalyst used in the production of elemental sulphur from H₂S (by oxidation-reduction) is

View solution

Q. Zeolite used in water softening process (cation exchange) is regenerated by washing with

View solution

Q. Which of the following is a detergent ?

View solution

Q. The only commercial Fischer-Tropsch plant for producing liquid hydrocarbon fuel from coal is located at

View solution

Q. Oils are partially hydrogenated (not fully) to manufacture vanaspati, because fully saturated solidified oils

View solution

Q. Paper grade bamboo contains about __________ percent cellulose.

View solution

Q. Carboxymethyl cellulose (CMC) is added in detergents to act as a/an

View solution

Q. Raw materials for 'Solvay Process' for manufacture of the soda ash are

View solution

Q. Chloral is used in the manufacture of

View solution

Q. Bromine is used in the preparation of

View solution

Q. Sudden temperature fluctuation does not affect pyrex glass, because of its

View solution

Q. Free alkali in a toilet soap is __________ that in a laundary shop.

View solution

Q. Dehydrogenation of isopropanol produces

View solution

Q. Pick out the wrong statement.

View solution

Q. Concentration of hydrogen peroxide is done by

View solution

Q. Helium is produced on commercial scale from

View solution