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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- IIT JAM
- Chemistry (CY)
From each pair given below identify the ion which is larger in size: [co, co fe, zn] ina", f] [ 0, s1 (a) co zn2, f, s (c) co, fe, f, s2 (b) co", fe, na', s (dc
From each pair given below identify the ion which is larger in size: [Co, Co Fe, Zn] INa", F] [ 0, s1 (a) Co Zn2, F, S (c) Co, Fe, F, S2 (b) Co", Fe, Na', S (dCo1, Zn, Nat, O
2 Answer(s)
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Dinesh khalmaniya 1 Best Answer
option C
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explanation sir ?
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yes, I'm explaing on paper just 1 min
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ok sir
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explaination
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but sir in 3d series me size decreases than constant then again increases wala concept ni lgega??
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no, it is isoelectronic series so yha charge dekhege. negative charge wala ion positive charge wale se jada hoga
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ohk sir
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Priyanshu kumar
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option C is correct shristy
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fe2+ is larger in size than Zn2+
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see this data
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but sir in 3d series first size decreases than constant then again increases....So Zn will b in lareger size ??
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This happen upto Cu+ and here we have to consider ionic radius...so nuclear charge effect comes
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see the data above
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any doubt shristy...wait explaining in proper way
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Toh sir ionic radius me size along period decreases hi lgega d block me b ??
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yes shristy it decrease and then at last of 3d series it increases but increase in ionic radius of Zn2+ is not much pronounced that it will be greater than fe2+
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you have confusion in only 2nd part...because in all you think it correct
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Amol ashok pawar
Answer a co2+, zn2+, f-, s2- All values in pm So correct option is a