MCQ
In case of hydrogen atom when electron falls from higher level to $M$ shell, the corresponding spectral line will form the part of :
- ABalmer series
- BLyman series
- ✓Paschen series
- DPfund series
✓
Answer
Correct option: C.
Paschen series
c
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
“The quantity of heat which must be supplied to decompose a compound into its element is equal to the heat evolved during the formation of that compound from the elements.” This statement is known as
If the internal energy of an ideal gas decreases by the same amount as the work done by the system, the process is
A reaction occurs spontaneously if
Which of the following compounds is/are amphoteric in nature?
One litre of a gas at $STP$ weight $1.16\, g$ it can possible be
→The reaction ${H_2}S + {H_2}{O_2} \to 2{H_2}O + S$ shows
→Methane with the Molecular formula "CH4" has
The $(S^o)$ of the following substances are
→$CH_4\,(g)\,\,186.2\,JK^{-1}\,mol^{-1}$
$O_2\,(g)\,\,205.2\,JK^{-1}\,mol^{-1}$
$CO_2\,(g)\,\,213.6\,JK^{-1}\,mol^{-1}$
$H_2O\,(g)\,\,69. 9\,JK^{-1}\,mol^{-1}$
The entropy change $(\Delta S^o)$........$JK^{-1}\,mol^{-1}$ for the reaction
$CH_4\,(g) + 2O_2\,(g) \to CO_2\,(g) + 2H_2O(l)$ is
Enthalpy of neutralization of $HCl$ by $NaOH$ is $-\,55.84\,kJ/mol$ and by $NH_4OH$ is $-\,51.34\,kJ/mol$. The enthalpy of ionization of $NH_4OH$ is .....$kJ$
→The dissociation of $SO_3(g)$ into $SO_2(g)$ & $O_2(g)$ is carried out in a closed container at a constant temperature $T$ . The equilibrium constant for the reaction is $K_P$ = $x\ atm^2$ . The partial pressure variation for the three gases is as shown
→The value of $x$ is