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O Level Chemistry e-Book's MCQs - Complete

Chemical Symbols MCQ App Download & e-Book - 555

MCQ:

In Calcium Hydroxide (Ca(OH)2), valency of Ca is

  1. −1
  2. −2
  3. +1
  4. +2

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Chemical Symbols App (Android & iOS)

Chemical Symbols App (Android & iOS)

O Level Chemistry App (Android & iOS)

O Level Chemistry App (iOS & Android)

9th Grade Chemistry App (Android & iOS)

9th Grade Chemistry App (Android & iOS)

College Chemistry App (Android & iOS)

College Chemistry App (iOS & Android)