How many statement(s) is/are correct? (i) Number of...

How many statement(s) is/are correct? (i) Number of 5-membered rings in the complex [Co(en)2Cl2]Cl is 2 (ii) Number of 6-membered rings in the red complex obtained when ethanol solution of dimethylglyoxime is added to ammonical Ni(II), is 2 (iii) CFSE value of the complex [Mn(H2O)5Cl]Cl is -0.4 ?0 (iv) Complex [Co(NH3)6]Cl2 is a paramagnetic while [Ni(NH3)6]Cl2 is diamagnetic complex (1) 1 (2) 2 (3) 3 (4) 4

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00:01 Okay, so we have given some options.

00:02 Let me consider the first one.

00:06 So there we have coe n hold twice cl2 cn okay.

00:16 So let me draw the structure for same.

00:22 So the cobald metal is the central metal.

00:29 It is connected to two chlorine atoms and we have e .n.

00:34 Hold twice.

00:35 So this is is ethylene diamine.

00:37 Okay.

00:38 So the structure will be like n .h.

00:41 2.

00:45 Then we have two ch2 units.

00:48 And further, we have nh2 again.

00:52 Okay.

00:56 Similarly, again, we have nh2 and we have nh2.

01:07 Okay.

01:10 So this is the structure we have.

01:15 So here now, for for en hold twice you can see that there is a ring but this ring consists of four atoms actually one two three four okay and the fifth one is for this cobalt metal similarly if i include this cobalt so there is total five so yes there are two five membered rings then second one so now we have nickel dimethyl glyoxyme structure, okay, which can also be represented as nickel dmg whole twice.

02:09 Okay, so the structure is like we have nickel metal in the center.

02:19 It is bonded to four nitrogen atoms and now double bonded carbon atom, single bond carbon atom, double bond, and we have methyl group attached to each carbon atom...

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