MCQ
The number of maximum possible different spectral lines obtained in Balmer series, when electron makes transition to ground state from $5^{th}$ excited state in a sample of hydrogen atoms
- A$15$
- ✓$4$
- C$6$
- D$10$
✓
Answer
Correct option: B.
$4$
b
$\begin{array}{l}
\left( {n - 2} \right)\\
6 - 2 = 4
\end{array}$
$\begin{array}{l}
\left( {n - 2} \right)\\
6 - 2 = 4
\end{array}$
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 reaction conditions leading to the best yields of $C_2H_5Cl$ are
→Correct configuration of the following is
Correct order of Lewis Acidic strength?
A salt $'X'$ is dissolved in water $(pH = 7),$ the resulting solution becomes alkaline in nature. The salt is made of
→The $pH$ of a solution is increased from $3$ to $6$ . Its ${H^ + }$ion concentration will be
→When $pH$ of a solution decreases, its hydrogen ion concentration
→Which of the following is not correct
In which of the following combination, is buffer action expected ?
$(a)\, NH_4OH + NH_4Cl$
$(b)\, HCl + NaCl$
$(c)\, NH_4OH + HCl$ in $2 : 1$ mole ratio
Select the correct answer using the code given below
→$(a)\, NH_4OH + NH_4Cl$
$(b)\, HCl + NaCl$
$(c)\, NH_4OH + HCl$ in $2 : 1$ mole ratio
Select the correct answer using the code given below
The $IUPAC$ name(s) of the following compound is(are)
→$[A]$ $4$-methylchlorobenzene $[B]$ $4$-chlorotoluene $[C]$ $1$-chloro-$4$-methylbenzene $[D]$ $1$-methyl-$4$-chlorobenzene
For which reaction from the following, $\Delta S$ will be maximum
→