Which one of the following statements is NOT correct?
The molecules of soap are sodium or potassium salts of long chain fatty acids
The molecules of soap contain both hydrophobic and hydrophilic ends
Detergents are more effective than soaps in hard water
In micelles the ionic-end of the molecules is towards oil droplet while the other end faces outside
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
Miscellaneous · Easy