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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. {en = H 2 NCH 2 CH 2 NH 2 : atomic numbers ; Ti = 22; Cr = 24; Co = 27; Pt = 78} List – I List – II (P) [Cr (NH 3 ) 4 Cl 2 ]Cl (1) Paramagnetic and exhibits ionization isomerism (Q) [Ti(H 2 O) 5 Cl](NO 3 ) 2 (2) Diamagnetic and exhibits cis -trans isomerism (R) [Pt(en)(NH 3 )Cl]NO 3 (3) Paramagnetic and exhibits cis-trans isomerism (S) [Co(NH 3 ) 4 (NO 3 ) 2 ]NO 3 (4) Diamagnetic and exhibits ionization isomerism Codes : P Q R S

1. 4 2 3 1
2. 3 1 4 2
3. 2 1 3 4
4. 1 3 4 2

Correct answer: 3 1 4 2

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