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4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
The correct sequence of increasing covalent character is represented by
  • A
    $LiCl < NaCl < BeC{l_2}$
  • B
    $BeC{l_2} < NaCl < LiCl$
  • ✓
    $NaCl < LiCl < BeCl_2$
  • D
    $BeC{l_2} < LiCl < NaCl$
✓

Answer

Correct option: C.
$NaCl < LiCl < BeCl_2$
(c) Order of polarising power $B{e^{ + + }} > L{i^ + } > N{a^ + }$

Hence order of covalent character $BeC{l_2} > LiCl > NaCl$

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