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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 of the following may act as an oxidising and reducing agent both?
  • A
    $K_2Cr_2O_7$
  • B
    $SO_2$
  • ✓
    $H_2S$
  • D
    $NH_3$
✓

Answer

Correct option: C.
$H_2S$
c
$SO _{3}, SiO _{2}=$ Acidic

$CaO =$ Basic

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

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