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Elements have electronegativities 1.5 and 3.0, bond formed between them would be :
A
Ionic
B
Covalent
C
Co-ordinate
D
Metallic
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Among LiCl, BeCl₂, BCl₃ and CCl₄, the covalent bond character follows the order:

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The correct order of decreasing polarisable ions is:

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