JEE Main201910 Apr 2019Evening ShiftChemistryEnvironmental ChemistryActual
The noble gas that does not occur in the atmosphere is;
Options
- AK r
- BN e
- CR a
- DH e
Correct answer
C. R a
Step-by-step solution
In the atmosphere, all the noble gases occur except radon. Out of all noble gases, argon is the major constituent. A decay product of radium is radon.