Which one among the following is the most appropriate statement with respect to the atomic weight of an element?
The atomic weight of an element is the sum total of the number of protons and neutrons present in the atom of that element
Unlike mass number, the atomic weight of an element can be a fraction
The atomic weight of an element is a whole number
The atomic weight of all the atoms in an element is the same
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