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Uses of alkali and alkaline earth metals - class-XI

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Multiple Choice

$MCrO _{4(s)}\overset{CH _{3}COOH(aq)}{\rightarrow}MCrO _{4}$  ( Suspension) above change is correct for which metal ion (s) ? 

  1. $Ba^{2+},Sr^{2+},Ca^{2+}$
  2. $Ba^{2+},Sr^{2+}$
  3. Only $Ba^{2+}$
  4. $Sr^{2+},Ca^{2+}$
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