If valency of calcium is 2.write the valency of other redicals in of Ca(OH)2
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the valency of O atom in OH- is -2
the valency of H atom in OH- is +1
hence, the valency of OH- ion is -1( ans. )
the valency of H atom in OH- is +1
hence, the valency of OH- ion is -1( ans. )
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