MCQ
For a $p -$ block element, its $3d, 3s, 3p$ and $4s$ orbitals are completely filled and the differentiating electron goes to the $4p$ orbital. The element should have its atomic number in the range
- A$13 - 18$
- B$21 - 26$
- ✓$31 - 36$
- D$49 - 54$
✓
Answer
Correct option: C.
$31 - 36$
c
(c) $31-36 $ $\Rightarrow$ $Ga$ to $Kr$.
(c) $31-36 $ $\Rightarrow$ $Ga$ to $Kr$.
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 hydride ion ${H^ - }$is stronger base than its hydroxide ion $O{H^ - }.$ Which of the following reaction will occur if sodium hydride $(NaH)$ is dissolved in water
→The $IUPAC$ name of (figure) is
→On the velocity in a reversible reaction, the correct explanation of the effect of catalyst is
The thermal dissociation equilibrium of $CaCO _3( s )$ is studied under different conditions.
→$CaCO _3( s ) \rightleftharpoons CaO ( s )+ CO _2( g )$
For this equilibrium, the correct statement(s) is (are)
$(A)$ $\Delta H$ is dependent on $T$
$(B)$ $K$ is independent of the initial amount of $CaCO _3$
$(C)$ $K$ is dependent on the pressure of $CO _2$ at a given $T$
$(D)$ $\Delta H$ is independent of the catalyst, if any
The $pH$ of the solution containing $50\, mL$ each of $0.10\, M$ sodium acetate and $0.01\, M$ acetic acid is $.......$
→[Given $pK _{ a }$ of $CH _{3} COOH =4.57$ ]
Which bond is strongest
Which of the following product is not formed during this reaction
→$\,\begin{array}{*{20}{c}}
{\,C{H_3} - \,CH - \,CH = C{H_2}\,\xrightarrow{{B{r_2}/aq.NaCl}}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}$
$IUPAC $ name of $C{H_3} - CH = CH - COOH$
→Among the following, the molecule with the highest dipole moment is
$10$ $d{m^3}$of ${N_2}$ gas and $10$ $d{m^3}$ of gas $X$ at the same temperature contain the same number of molecules. The gas $X$ is
→