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
- A
metal oxides
- B
boron oxide
- C
metal metaborates
- D
elemental boron
Similar Questions
The formation of molecular complex $BF_3 - NH_3$ results in a change in hybridization of boron
The formation of molecular complex $BF_3 - NH_3$ results in a change in hybridization of boron
- [AIEEE 2012]
Assertion : Both $Be$ and $Al$ can form complexes such as $BeF_4^{2-}$ and $AlF_6^{3-}$ respectively, $BeF_6^{3-}$ is not formed.
Reason : In case of $Be$, no vacant $d-$ orbitals are present in its outermost shell.
Assertion : Both $Be$ and $Al$ can form complexes such as $BeF_4^{2-}$ and $AlF_6^{3-}$ respectively, $BeF_6^{3-}$ is not formed.
Reason : In case of $Be$, no vacant $d-$ orbitals are present in its outermost shell.
- [AIIMS 2015]
White fumes appear around the bottle of anhydrous aluminium chloride. Give reason.
White fumes appear around the bottle of anhydrous aluminium chloride. Give reason.
Covalent electron deficient hydride is formed by
Covalent electron deficient hydride is formed by
The green colour produced in the borax bead test of a chromium$(III)$ salt is due to formation of______:
The green colour produced in the borax bead test of a chromium$(III)$ salt is due to formation of______:
- [IIT 2019]