The elements of group $IA$ provide a colour to the flame of a Bunsen burner due to
- ALow ionization potential
- BLow melting point
- CSoftness
- DPresence of one electron in the outermost orbit
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Similar Questions
What is the product formed when sodium reacts with an excess of oxygen/air?
Medium
View SolutionAssertion $(A)$: Alkali metals are soft and have low melting and boiling points.
Reason $(R)$: This is because interatomic bonds are weak.
Reason $(R)$: This is because interatomic bonds are weak.
Which of the following represents the correct order of hydration energy?
Medium
View SolutionWhich among the following sets of compounds is used as raw material for the preparation of sodium carbonate by the Solvay process?
Which of the following is $CORRECT$ regarding alkali metals?
$I$. Pure $NaCl$ is hygroscopic
$II$. $(n - 1)d$ subshell is vacant only
$III$. Aqueous $NaHCO_3$ solution is more basic than $Na_2CO_3$ solution
$IV$. Both $Li^{+}$ and $Mg^{2+}$ do not form alums
$I$. Pure $NaCl$ is hygroscopic
$II$. $(n - 1)d$ subshell is vacant only
$III$. Aqueous $NaHCO_3$ solution is more basic than $Na_2CO_3$ solution
$IV$. Both $Li^{+}$ and $Mg^{2+}$ do not form alums
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