Question

Match each coordination compound in List-I with an appropriate pair of characteristics from List-II and select the correct answer using the code given below the lists $\left\{ en = H _{2} NCH _{2} CH _{2} NH _{2} ;\right.$ atomic numbers: $\left.Ti =22, Cr =24 ; Co =27 ; Pt =78\right)$

List - I		List - II
P	$\left[ Cr \left( NH _{3}\right)_{4} Cl _{2}\right] Cl$	1	Paramagnetic and exhibits ionization isomerism
Q	$\left[ Ti \left( H _{2} O \right)_{5} Cl \right]\left( NO _{3}\right)_{2}$	2	Diamagnetic and exhibits cis-trans isomerism
R	$\left[ Pt ( en )\left( NH _{3}\right) Cl \right] NO _{3}$	3	Paramagnetic and exhibits cis-trans isomerism
S	$\left[ Co \left( NH _{3}\right)_{4}\left( NO _{3}\right)_{2}\right] NO _{3}$	4	Diamagnetic and exhibits ionization isomerism

• A. P - (4) , Q - (2) , R -(3) , S - (1)
• B. P - (3) , Q - (1) , R -(4) , S - (2)
• C. P - (2) , Q - (1) , R -(3) , S - (4)
• D. P - (1) , Q - (3) , R -(4) , S - (2)

Answer 1

Answer: (B)

(P) $\left[ Cr \left( NH _{3}\right)_{4} Cl _{2}\right] Cl \longrightarrow $ Paramagnetic and exhibits cis-trans isomerism
(Q) $\left[ Ti \left( H _{2} O \right)_{5} Cl \right]\left( NO _{3}\right)_{2} \longrightarrow $ Paramagnetic and exhibits ionization isomerism
(R) $\left[ Pt ( en )\left( NH _{3}\right) Cl \right] NO _{3} \longrightarrow $ Diamagnetic and exhibits ionization isomerism
(S) $\left[ Co \left( NH _{3}\right)_{4}\left( NO _{3}\right)_{2}\right] NO _{3} \longrightarrow $ Diamagnetic and exhibits cis-trans isomerism