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AP EAMCET202123 Aug 2021Evening ShiftChemistryChemical Bonding and Molecular StructureActual

Assertion (A) Covalent character follows NaCl < MgCl ₂ < BeCl ₂ < LiCl . Reason (R) According to Fajan's rules, covalent character of ionic compounds increases with decrease in size of cation.

Options

  1. ABoth A and R are true and R is a correct explanation for A .
  2. BBoth A and R are true but R is not a correct explanation for A .
  3. CA is true but R is false.
  4. DA is false but R is true.

Correct answer

D. A is false but R is true.

Step-by-step solution

The correct order of covalent character is NaCl < LiCl < MgCl ₂ < BeCl ₂ . The covalent character depends on small size as well as more + ve charge on cation.

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