Which of the following is the characteristic outer shell electronic configuration of alkaline earth metals?
- A$ns^1$
- B$ns^2$
- C$ns^2np^2$
- D$ns^2np^1$
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Assertion : Of the various chlorides of alkaline earth metals $BeCl_2$ is covalent in nature,whereas $MgCl_2$ and $CaCl_2$ are ionic compounds.
Reason : $Be$ is the first member of group $2$.
Reason : $Be$ is the first member of group $2$.
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View SolutionMagnesium powder burns in air to give
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View SolutionMatch the flame colours of the alkaline earth metal salts in the Bunsen burner:
$A$. Calcium $p$. Brick red $B$. Strontium $q$. Apple green $C$. Barium $r$. Crimson
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| $B$. Strontium | $q$. Apple green |
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When $CO_2$ is passed into lime water,it turns milky. When an excess of $CO_2$ is passed,the milkiness disappears because:
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