P-Block Elements Ques 581
Question: A metal X on heating in nitrogen gas gives Y. Y on treatment with $ H_2O $ gives a colourless gas which when passed through $ CuSO_4 $ solution gives a blue colour. Y is
Options:
A) $ Mg{{(NO_3)}_2} $
B) $ Mg_3N_2 $
C) $ NH_3 $
D) $ MgO $
Show Answer
Answer:
Correct Answer: B
Solution:
$ 3Mg+N_2\xrightarrow{\Delta }Mg_3N_2\xrightarrow{6H_2O} $ $ 3Mg{{( OH )}_2}+2NH_3; $ $ CuSO_4+4NH_3\to \underset{deepbluecolour}{\mathop{[ Cu{{( NH_3 )}_4} ]SO_4}} $
