Hydrophilic group of a soap or detergent solution is____________________?

A. Alum
B. Limestone
C. Coke
D. Quartz

A. Pig iron
B. Steel
C. Copper
D. Zinc

A. NH3 and CO2
B. Lime and soda ash
C. Lime, ammonia and carbon
D. All A , B. and C.

A. Coke breeze
B. Lime powder
C. Silica/quartz
D. Dolomite

A. Electrical insulator
B. Allotrope of carbon
C. Moderator used in nuclear reactor
D. Both B. and C.