MCQ
The element with configuration $1{s^2},\,2{s^2}{p^6},\,3{s^2}$ would be
- ✓A metal
- BA non-metal
- CAn inert gas
- DA metalloid
✓
Answer
Correct option: A.
A metal
a
(a) The configuration represents on alkaline earth metals.
(a) The configuration represents on alkaline earth metals.
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
In given compounds which one does not give glyoxal as one of the product on ozonolysis ?
Predict major product of the reaction
For water at $100^{\circ} \mathrm{C}$ and $1\, bar,$
→$\Delta_{\text {vap }} \mathrm{H}-\Delta_{\text {vap }} \mathrm{U}=...... \times 10^{2} \,\mathrm{~J}\, \mathrm{~mol}^{-1}$. (Round off to the NearestInteger)
$\left[\right.$ Use : $\left.R=8.31\, \mathrm{~J}\, \mathrm{~mol}^{-1}\, \mathrm{~K}^{-1}\right]$
[Assume volume of $\mathrm{H}_{2} \mathrm{O}(\mathrm{l})$ is much smaller than volume of $\mathrm{H}_{2} \mathrm{O}(\mathrm{g})$. Assume $\mathrm{H}_{2} \mathrm{O}(\mathrm{g})$ treated as an ideal gas]
$IUPAC$ name of the following compound $C{H_3} - C{H_2} - \mathop {CH - C{H_2}}\limits^{\mathop {O\,\,\,\,\,\,\,}\limits_{/\,\,\,\,\,\backslash \,\,\,\,\,\,\,} } $ is
→What is product of the following reaction ?
The product formed when glycerol reacts with $PCl_5$ is -
→$\begin{array}{*{20}{c}}
{C{H_3}\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - CH - C \equiv CH}
\end{array}\xrightarrow{{excess\,HBr}}$
→{C{H_3}\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - CH - C \equiv CH}
\end{array}\xrightarrow{{excess\,HBr}}$
The product of the above reaction is
In what manner will increase of pressure affect the following equation ?
→${C_{\left( s \right)}} + {H_2}{O_{\left( g \right)}} \rightleftharpoons C{O_{\left( g \right)}} + {H_{2\left( g \right)}}$
Given below are two statements:
Statement (I):
will react with NaOH and also with Tollen's reagent.
Statement (II):
will undergo self aldol condensation very easily.
In the light of the above statements, choose the most appropriate answer from the options given below:
Statement (I):
will react with NaOH and also with Tollen's reagent.
Statement (II):
will undergo self aldol condensation very easily.
In the light of the above statements, choose the most appropriate answer from the options given below:
is converted into by: