Match 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
| $A$. Calcium | $p$. Brick red |
| $B$. Strontium | $q$. Apple green |
| $C$. Barium | $r$. Crimson |
- A$A-p, B-r, C-q$
- B$A-r, B-p, C-q$
- C$A-q, B-r, C-p$
- D$A-p, B-q, C-r$
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