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Problem
The incorrect order is : a.
N
>
P
>
As
\text{N} > \text{P} > \text{As}
N
>
P
>
As
: Strength of
π
\pi
π
-bond with oxygen atom b.
SiF
4
>
SiCl
4
>
SiBr
4
>
SiI
4
\text{SiF}_4 > \text{SiCl}_4 > \text{SiBr}_4 > \text{SiI}_4
SiF
4
>
SiCl
4
>
SiBr
4
>
SiI
4
: Thermal stability c.
H
2
S
>
H
2
Se
>
H
2
Te
\text{H}_2\text{S} > \text{H}_2\text{Se} > \text{H}_2\text{Te}
H
2
S
>
H
2
Se
>
H
2
Te
: Arrhenious acid character d.
CaBr
2
>
MgBr
2
>
BeBr
2
\text{CaBr}_2 > \text{MgBr}_2 > \text{BeBr}_2
CaBr
2
>
MgBr
2
>
BeBr
2
: Melting point
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