A bromide ion does not interfere with the chromyl chloride test because when a bromide ion is present
(A) CrO2Br2 formed is less volatile than CrO2Cl2
(B) CrO2Br2 does not react with NaOH
(C) Br2 is liberated which leaves NaOH solution colourless
(D) no gaseous substance containing bromine is produced
