A) Mixture of \[C{{O}_{3}}^{2-}\] and \[HC{{O}_{3}}^{\Theta }\] can be distinguished by phenolphthalein, which gives pink colour with \[C{{O}_{3}}^{2-}\] ions and no colour with \[HC{{O}_{3}}^{\Theta }\] ions.
B) Mixture of \[N{{O}_{2}}^{\Theta }\] and \[N{{O}_{3}}^{\Theta }\] can be distinguished by 'ring test'. \[N{{O}_{3}}^{\Theta }\]ions gives brown ring while \[N{{O}_{2}}^{\Theta }\] ions gives a green coloured solution.
C) Mixture of \[B{{r}^{\Theta }}\] and \[N{{O}_{3}}^{\Theta }\] ions can be distinguished by adding cone. \[{{H}_{2}}S{{O}_{4}}\]. Pass the reddish-brown gas evolved through FeS04 solution. If it turns black, it is \[N{{O}_{3}}^{\Theta }\] if does not turn black, it is \[B{{r}^{\Theta }}\]ion.
D) Chromyl chloride test fail with \[B{{r}^{\Theta }}\] and \[{{I}^{\Theta }}\] ions since both chromyl bromide and chromyl iodides are non-volatile in nature.
Correct Answer: B
Solution :
[b] Statement (2) is INCORRECT CORRECT statement:- \[N{{O}_{2}}^{\Theta }\]ions gives a black coloured solution
You need to login to perform this action.
You will be redirected in
3 sec
