Question

Which of the following reaction is not
feasible ?
Zn + NaOH - - Na ZnO2 + H2
NaOH + HCI - - NaCl + H20
Al + NaOH - - NaAlO2 + H2
Cu + HCI - - CuCl2 + H2​

Answer 1

Explanation:

when an electron jumps from 8th orbit to second orbit n=2 how many no of possible spectral lines are obtained in Lyman series of H spectrum