MCQ
Which electronic arrangement shows ground state of an element
- A
- B
- C
- ✓
✓
Answer
Correct option: D.
d
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
Identify compound which can show geometrical isomerism :
The stability of carbanions in the following.
→$(i)\,\,RC \equiv \mathop C\limits^ \ominus $
$(ii)\,\,[IMAGE]$
$(iii)\,\,{R_2}C = \mathop C\limits^ \ominus H$
$(iv)\,\,{R_3}C - \mathop C\limits^ \ominus {H_2}$
Which of the following has highest melting point
For a reaction ${H_{2\left( g \right)}} + \frac{1}{2}{O_{2\left( g \right)}} \longrightarrow {H_2}{O_{\left( l \right)}}$ ; $\Delta {C_p} = 32\,J{K^{ - 1}}$, $\Delta H$ at $27\,^oC = -285.8\, kJ\, mol^{-1}$. What will be the value of $\Delta H$ at $127\,^oC$ ?.....$kJ/mol$
→Millimoles of calcium hydroxyide required to produce $100\,mL$ of the aqueous solution of $pH \,12$ is $x \times 10^{-1}$. The value of $x$ is $..............$. (Nearest integer).Assume complete dissociation.
→What is not true about homologous series?
Which of the following are the properties of solid?
$LIST-I$ contains reactions and $LIST-II$ contains major products. Match each reaction in $LIST-I$ with one or more products in $LIST-II$ and choose the correct option.
→An acidified solution of $0.05 M Zn ^{2+}$ is saturated with $0.1 M H _2 S$. What is the minimum molar concentration ($M$) of $H ^{+}$required to prevent the precipitation of $ZnS$ ?
→Use $K_{ sp }( ZnS )=1.25 \times 10^{-22}$ and
Overall dissociation constant of $H _2 S , K_{ NET }=K_1 K_2=1 \times 10^{-21}$
Oxidation of thiosulphate ${S_2}O_3^{2 - }$ ion by iodine gives
→