MCQ
Molecules are held together by which type of bonds?
- ACovalent bonds
- BIonic bonds
- CBoth $A$ and $B$
- ✓None of these
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where $pK_1 , pK_2, pK_3$ are first ionization constants. Incorrect order is

$Al_2Cl_6$ $-$ $Al_2(CH_3)_6$ $-$ $AlF_3$ $-$ Dimer of $BeCl_2$ $-$ Dimer of $BeH_2$
(Note : $C$ for complete octet and $IC$ for incomplete octet.)