Assertion : Elements like Rb, Cs, Tl, In, Ga and Sc were discovered when their minerals were analysed by spectroscopic methods. Reason : The characteristiclines in atomic spectra can be used in chemical analysis to identify unknown atoms.

Assertion : Elements like Rb, Cs, Tl, In, Ga and Sc were discovered wh

1.	Assertion : Elements like Rb, Cs, Tl, In, Ga and Sc were discovered when their minerals were analysed by spectroscopic methods. Reason : The characteristiclines in atomic spectra can be used in chemical analysis to identify unknown atoms.
Answer» If both ASSERTION and REASON are TRUE and reason is the CORRECT EXPLANATION of assertion. If both assertion and reason are true but reason is not the correct explanation of assertion. If assertion is true but reason is false. If both assertion and reason are false. Answer :A