An aqueous solution of salt (P) gives white precipitate with barium chloride solution which is insoluble in dilute HCI and dilute HNO_(3). When ammonia (aq) is added to the aqueous solution of salt (P) blue precipitate is obtained which dissolves in excess ammonia producing deep blue colouration due to formation complex (Q). With KCN, (P) gives first a yellow precipitate which quickly decomposes to white precipitate along with liberating highly poisonous gas (R).(R) on hydrogenation produces (S) which gives yellowish orange coloured complex (T) with CoCI_(3). Which of the following options regarding complex Q and T is not correct?

An aqueous solution of salt (P) gives white precipitate with barium ch

1.	An aqueous solution of salt (P) gives white precipitate with barium chloride solution which is insoluble in dilute HCI and dilute HNO_(3). When ammonia (aq) is added to the aqueous solution of salt (P) blue precipitate is obtained which dissolves in excess ammonia producing deep blue colouration due to formation complex (Q). With KCN, (P) gives first a yellow precipitate which quickly decomposes to white precipitate along with liberating highly poisonous gas (R).(R) on hydrogenation produces (S) which gives yellowish orange coloured complex (T) with CoCI_(3). Which of the following options regarding complex Q and T is not correct?
Answer» Q is PARAMAGNETIC where as T is diamagnetic Q has a square planar GEOMETRY where as T has octahedral geometry When dissolved in water, Van't Hoff coefficient for Q is 2 and that of T is 4 (assuming 100% dissociation and monocations). Only ONE of the above statement is correct. Solution :`P rarr CuSO_(4), Q rarr [Cu(NH_(3))_(4)] SO_(4), R rarr (CN)_(2)` `{:(S rarr,CH_(2)-NH_(2)),(,""\|),(,CH_(2)-NH_(2)):}` `T rarr[Co(EN)_(3)]^(3+)` `Q rarr` Paramagnetic square planar `T rarr` Diamagnetic, octahedral