Test:11 QNo:1

Q1 Which of the following do exist?
a) SH₆
b) HFO₄
c) FeI₃
d) HClO₃

Correct Answer: (d)

FeI3 also exists naa ??

ya,it does i.e. iron (III) iodide

so ans given is wrong naa ??
I also feel HFO4 also exists..

d) will be the rite ans.

Fe³⁺ ion will be stabilised only by atoms having high electronegativity.

Whereas connecting half-reaction 1 (Fe3+/Fe2+) to I2/2I- results in a reading of 0.23V.

and SH₆ wont exist bcos of the high electronegative of sulphur and the small size of hydrogen if SH₆ exists then it suddenly dissociate to H₂S.

HFO₄ wont exist bcos of the fluorine atom.

can u give ne explanation for dat one eure.

no explaination..just instinct...[3]
i will search for a proof and then reply..[1]

hey if it is formed then it will be an ionic cpd rite.

do u agree.

An ionic cpd can be formed only if

lattice energy +electron gain enthalpy > ionisation enthalpy

rite.

here lattice energy is definitely low for Iodine and also its electron gain enthalpy okie

but the ionisation enthalpy is high for formation of Fe3+ rite so cpd cant be formed.

do u agree.