Question

Which of the following statement is correct?

A
AlF3 is predominantely covalent in nature
B
NOF3 does not exist
C
(SCN)2 is pseudohalogen
D
BF4 has back bonding

Solution

The correct option is C $$(SCN)_2$$ is pseudohalogenAn axion which is not a halogen but has similar property like halogen is called a pseudohalogen.A pseudohalogen is composed of two electronegative chemicals linked to each other like AB - BA.Hence $(SCN)_{2}$  is a pseudohalogen.Chemistry

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