JEE Advanced 2020 Full Test 7 Paper 1

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Question : 25 of 54

Marks: +1, -0

Which of the following statement is/are incorrect:

K2CO3 is more covalent than Na2CO3
Cyanogen (CN)2 is inert towards NaOH
N3− and CN− are pseudohalides.
Br2 does not disproportionate in alkaline solution

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