PG TRB Chemistry free test series | Test 2 on sunday @10 a.m. and Retest @ 7 p.m.
Just a view about how to read unit 10 physical sspectroscopy….
https://youtu.be/OEhGjyuoNJM
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Parthiban S has invited you to join the Classroom PG TRB Chemistry 2021 Subject: Chemistry Classroom ID: 868015028
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