Mannheim furnace is used in the manufacture of_________________?

A. Na2CO3
B. NaHCO3
C. Na2CO3.H2O
D. Na2CO3.10H2O

A. The number of grams of iodine taken up by 100 gm of oil or fat
B. A measure of its unsaturation
C. Helpful in findings its adulteration & its suitability for making soap
D. Independent of the type of oil, whether it is drying or non-drying

A. Flint
B. Pyrex
C. Quartz
D. All A, B. & C

A. Water
B. Liquid ammonia
C. Kerosene oil
D. Alcohol

A. 15
B. 35
C. 55
D. 70