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Consider the following elements with the...

Consider the following elements with their period number and valence electrons.
`{:("Elements","Period number","Total valence"e^(-)),(P,2,4),(Q,2,6),(R,3,7),(S,3,3),(T,3,6),(U,3,4):}`
According to the given informations, answer the following questions :
Choose the incorrect statement :

A

`SR_(3)` is a hypovalent compound

B

`UR_(4)` can act as a Lewis acid

C

`PQ_(2)` can not acts as Lewis acid

D

`UR_(4) gt SR_(3)` : Lewis acidic character

Text Solution

Verified by Experts

The correct Answer is:
C
`SR_(3) : AlCl_(3) " " UR_(4) : SiCl_(4) " " PQ_(2) : CO_(2)` can act as Lewis acid.
Lewis acidic character of `SiCl_(4) gt AlCl_(3)`
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