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The HF(2)^(Θ) ion solid state and in liq...

The `HF_(2)^(Θ)` ion solid state and in liquid `HF` but not in the dilute aqueous solution
Consider the following molecules .
`A`:Anti -pyridine -2-carboxaldoxime
`B`:syn pyridine -2-carboaxaldoxime
`C`: nickel -dimethyl glyoximate
`C` : nickel-dimethyl glyoximate
`D` : o-nitrophenol
`E` : p-nitrophenol
`F` : p-salicylaldehyde
In which case chelate formation occurs ? .

A

`A,B`

B

`B,C`

C

`C,F`

D

`C` only

Text Solution

Verified by Experts

The correct Answer is:
D
Chelate foramtion occurs in ( c) only Structures of the following molecules are
Anti pyridine-2-carboxaldoxine (Anti w.r.t position of `H` and `(OH)` Intramoleculare h-bonding
(syn pyridine -2-carboxaldoxime) (syn w.r.t position of `H` and `OH` (No intermolecular H-bonding)
[Chelate formation and intramolecular H-bonding occurs]
`O` nitrophenol [Intramolecular h-bonding occurs
(p-Nitrophenol [Only intermolecular h-bonding occurs]
p-salicyaldehyde [Only intermolecular h-bonding occurs]


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The HF_(2)^(Θ) ion solid state and in liquid HF but not in the dilute aqueous solution In aqueous solution

The HF_(2)^(Θ) ion solid state and in liquid HF but not in the dilute aqueous solution Consider the following molecules . A :Anti -pyridine -2-carboxaldoxime B :syn pyridine -2-carboaxaldoxime C : nickel -dimethyl glyoximate C : nickel-dimethyl glyoximate D : o-nitrophenol intermolecular hydrogen bonding (inQ.5) is observed in .

The HF_(2)^(Θ) ion solid state and in liquid HF but not in the dilute aqueous solution Energy of H-bond is maximum in .

The HF_(2)^(Θ) ion solid state and in liquid HF but not in the dilute aqueous solution At 300 K and 1.00 atm, the density of HF is 3.17 gL^(-1) We conclude that there is a .

The HF_(2)^(Θ) ion solid state and in liquid HF but not in the dilute aqueous solution HF_(2)^(Θ) exists in solid state and in liquid HF because HF_(2)^(Θ) ions are held together by .

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