Teaching UP PGT Mock Test Series 2024 Chemical Sciences Main Group Elements and Their Compounds

B₂(NR₂)₄(I), B₂(OR)₄(II), B₂F₄(III) और B₂Cl₄(IV) में स्थायित्व का सही क्रम क्या है?

1
I > II > III > IV
2
IV > III > II > I
3
II > I > III > IV
4
III > IV > I > II
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