In India,during wedding ceremonies,a green flame is observed in fireworks. Which of the following elements is responsible for this?
- A$Na$
- B$K$
- C$Ba$
- D$Ca$
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An element reacts with hydrogen to form a compound $A$,which on treatment with water liberates hydrogen gas. The element can be
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View SolutionThe number of electrons in the valence shell of calcium is
Beryllium and aluminium exhibit many similar properties. However,they differ in which of the following aspects?
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View SolutionObserve the following compounds.
$(i)$ $CaCO_3$
$(ii)$ $MgSO_4$
$(iii)$ $BaCl_2$
$(iv)$ $Sr(NO_3)_2$
$(v)$ $MgBr_2$
$(vi)$ $MgCl_2$
The oxoacid salts of group $II$ elements from the above list are
$(i)$ $CaCO_3$
$(ii)$ $MgSO_4$
$(iii)$ $BaCl_2$
$(iv)$ $Sr(NO_3)_2$
$(v)$ $MgBr_2$
$(vi)$ $MgCl_2$
The oxoacid salts of group $II$ elements from the above list are
Which one contains both $Ca$ and $Mg$?
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