MCQ
Chemically Zinc group elements closely resemble ______.
- AI A group
- BII A group
- CIII A group
- DIV A group
✓
Answer
- II A group
Explanation:
Zinc belongs to IIB and it closely resembles IIA because of the completely filled valence orbitals. The reason is in IIA group all the elements have completely filled s-orbital while in IIB group the elements have completely filled s orbital along with d-orbital.
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
Transitional elements exhibit variable valencies because they release electrons from the following orbits:
Which of the following statement is not correct?
Which of the following cannot undergo $E_2$ reaction?
→Transition metals show paramagnetism due to:
Which reaction is correct in the conversion of chloroform to acetylene
$\begin{array}{*{20}{c}}
{C{H_3} - C - H} \\
{\,\,\,\,\,||} \\
{\,\,\,\,\,O}
\end{array} \xrightarrow[{\mathop O\limits^\Theta H}]{{HCN}}(A)\xrightarrow[{Hydrolysis}]{{Partial}}(B)$
→{C{H_3} - C - H} \\
{\,\,\,\,\,||} \\
{\,\,\,\,\,O}
\end{array} \xrightarrow[{\mathop O\limits^\Theta H}]{{HCN}}(A)\xrightarrow[{Hydrolysis}]{{Partial}}(B)$
Product $'B'$ is
Consider the above reaction and predict the major product.
Electrode potentials $(E^o)$ are given below
→$Cu^+ /Cu = + 0.52\, V$,
$Fe^{3+} /Fe^{2+} = +0.7 7\, V$,
$\frac{1}{2}{I_2}\left( s \right)/{I^ - }\, = + 0.54\,V,$
$Ag^+ /Ag = + 0.88\,V$.
Based on the above potentials, strongest oxidizing agent will be
What is formed when a ketone is reduced?
The Freezing point of $1\%$ aqueous solution of calcium nitrate will be
→