8) Give the formula and valency of : (a) aluminate ______ and ______ (b) chromate ______and ______ (c) aluminium _____ and ______ (d) cupric _________and______ plz give me ans as soon as possible ,and follow me on insta my id shar_on336 okk follow me.
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Explanation:
Formula of aluminate is AlO₃ and valency = -1
formula of chromate is CrO₄⁻² and valency = 2
formula of aluminium is AL and valency = 3
formula of cupric is CuO and valency = 2
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