MCQ
Which of the following has the least electron affinity in $kJ\,mo{l^{ - 1}}$
- AOxygen
- BCarbon
- ✓Nitrogen
- DBoron
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Assertion $A$ : Thin layer chromatography is an adsorption chromatography.
Reason $R$: A thin layer of silica gel is spread over a glass plate of suitable size in thin layer chromatography which acts as an adsorbent. In the light of the above statements, choose the correct answer from the options given below.
