Which of the following cation can not give borax bead test ?
Which of the following cation can not give borax bead test ?
- A
$Cr^{3+}$
- B
$Co^{2+}$
- C
$Ag^+$
- D
$Mn^{2+}$
Similar Questions
Give oxidation state of gallium.
Give oxidation state of gallium.
Give reasons:
$(i)$ Conc. $HNO _{3}$ can be transported in aluminium container.
$(ii)$ $A$ mixture of dilute $NaOH$ and aluminium pieces is used to open drain.
$(iii)$ Graphite is used as lubricant.
$(iv)$ Diamond is used as an abrasive.
$(v)$ Aluminium alloys are used to make aircraft body.
$(vi)$ Aluminium utensils should not be kept in water overnight.
$(vii)$ Aluminium wire is used to make transmission cables.
Give reasons:
$(i)$ Conc. $HNO _{3}$ can be transported in aluminium container.
$(ii)$ $A$ mixture of dilute $NaOH$ and aluminium pieces is used to open drain.
$(iii)$ Graphite is used as lubricant.
$(iv)$ Diamond is used as an abrasive.
$(v)$ Aluminium alloys are used to make aircraft body.
$(vi)$ Aluminium utensils should not be kept in water overnight.
$(vii)$ Aluminium wire is used to make transmission cables.
Outermost electronic configuration of a group $13$ element, $E$, is $4 \,\mathrm{~s}^{2}, 4 p^{1}$. The electronic configuration of an element of $p$-block period-five placed diagonally to element, $E$ is :
Outermost electronic configuration of a group $13$ element, $E$, is $4 \,\mathrm{~s}^{2}, 4 p^{1}$. The electronic configuration of an element of $p$-block period-five placed diagonally to element, $E$ is :
- [JEE MAIN 2021]
Colour of the bead in borax bead test is mainly due to the formation of
Colour of the bead in borax bead test is mainly due to the formation of
In the electrolysis of alumina, cryolite is added to
In the electrolysis of alumina, cryolite is added to
- [IIT 1986]