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3. Classification of elements and periodicity in properties — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
MCQ
Which property decreases from left to right across the periodic table and increases from  top to bottom?
$(i)$ Atomic radius  $(ii)$ Electronegativity

$(iii)$ Ionisation energy $(iv)$ Metallic character

  • A
    $(i)$ only
  • ✓
    $(i), (ii)$ and $(iii)$
  • C
    $(i), (iii)$ and $(iv)$
  • D
    $(i)$ and $(iv)$
✓

Answer

Correct option: B.
$(i), (ii)$ and $(iii)$
b
$Na _{2} O =$ Basic

$N _{2} O =$ Neutral

$Cl _{2} O _{7}=$ Acidic

$As _{2} O _{3}=$ Amphoteric

$NO =$ Neutral

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