Which one of the following statements is NOT correct?
A scale measuring hydrogen ion concentration in a solution is called pH scale
The higher the hydrogen ion concentration in a solution, higher is its pH
We can measure pH generally from 0 to 14 on a pH scale
The 'p' in pH stands for 'potenz' in German meaning power
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