List of top Chemistry Questions on Classification asked in JEE Advanced

Identify the least stable ion amongst the following.

Ionic radii of

Which has most stable +2 oxidation state?

Amongst the elements with following electronic configurations, which one may have the highest ionisation energy?

Which one of the following is the smallest in size?

The first ionisation potential of Na, Mg, Al and Si are in the

Atomic radii of fluorine and neon in Angstrom units are respectively given by

The correct order of second ionisation potential of carbon, nitrogen, oxygen and fluorine is