Sodium Carbonate cannot be used in place of (NH_4)_2CO_3 for the identification of Ca^ 2+ , Ba^ 2+ and Sr^ 2+ ions (in group V ) during mixture analysis because :

JEE Main 2013 Chemistry question

Sodium Carbonate cannot be used in place of for the identification of , and ions (in group V ) during mixture analysis because :

Answer: (1)

in the presence of gives a carbonate concentration high enough to precipitate the group-V carbonates but

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Question ID VK-103934