Select the correct statement.
- A$Be$ and $Al$ show diagonal relationship.
- B$Be$ forms tetrahedral complexes $[Be(C_2O_4)_2]^{2-}$.
- C$Al$ forms $AlF_6^{3-}$,an octahedral complex.
- DAll are correct statements.
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Which of the following compounds decompose on heating?
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View Solution$Al_4C_3$ is an ionic carbide,named as
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View SolutionThe correct statements among the following are:
$(A)$ $BeH_2$ and $MgH_2$ are polymeric in nature.
$(B)$ $LiH$ is unreactive to oxygen at moderate temperatures.
$(C)$ $BeH_2$ and $MgH_2$ possess significant covalent character.
$(D)$ The stability of alkali metal hydrides follows the order $LiH < NaH < KH < RbH < CsH$.
$(A)$ $BeH_2$ and $MgH_2$ are polymeric in nature.
$(B)$ $LiH$ is unreactive to oxygen at moderate temperatures.
$(C)$ $BeH_2$ and $MgH_2$ possess significant covalent character.
$(D)$ The stability of alkali metal hydrides follows the order $LiH < NaH < KH < RbH < CsH$.
Match the following items in Column-$I$ with the corresponding items in Column-$II$.
Column-$I$ Column-$II$ $I$. $Na_2CO_3 \cdot 10H_2O$ $A$. Portland cement ingredient $II$. $Mg(HCO_3)_2$ $B$. Castner-Kellner process $III$. $NaOH$ $C$. Solvay process $IV$. $Ca_3Al_2O_6$ $D$. Temporary hardness
| Column-$I$ | Column-$II$ |
|---|---|
| $I$. $Na_2CO_3 \cdot 10H_2O$ | $A$. Portland cement ingredient |
| $II$. $Mg(HCO_3)_2$ | $B$. Castner-Kellner process |
| $III$. $NaOH$ | $C$. Solvay process |
| $IV$. $Ca_3Al_2O_6$ | $D$. Temporary hardness |
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View SolutionCopper is very slowly oxidized on the surface in moist air,giving a green coating of verdigris. The chemical formula of verdigris is:
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