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
$Mn^{2+}$
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Give uses of $Al$ and its compound.
Give uses of $Al$ and its compound.
The function of fluorspar in the electrolytic reduction of alumina dissolved in fused cryolite $(Na_3AlF_6)$ is :
The function of fluorspar in the electrolytic reduction of alumina dissolved in fused cryolite $(Na_3AlF_6)$ is :
Which of the following does not exist in free form
Which of the following does not exist in free form
$Al_4C_3$ is an ionic carbide, named as
$Al_4C_3$ is an ionic carbide, named as
Explain the following :
$(1)$ Gallium has higher ionisation enthalpy than aluminum.
$(2)$ Boron does not exist as $B^{3+}$ ion.
Explain the following :
$(1)$ Gallium has higher ionisation enthalpy than aluminum.
$(2)$ Boron does not exist as $B^{3+}$ ion.