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Atoms and Molecules — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
Question
Write the ions present in:
  1. Al2(CO3)3
  2. AlBr3
✓

Answer

  1. 2 ions of Al3+

3 ions of CO32-

Hence total no. of ions = 5

  1. The ions present in AlBr3 are aluminum ion (Al3+) and bromide ions (Br1-)

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