atomic number of metal 'a' is 11 while atomic number of metal 'b'is 20 which of them will be more reactive write thw chemical reaction of dilute HCL with metal 'a'
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It will form aCl +H2 gas when reacted with HCl.
more reactive is a as it could lose electrons easily as valence electrons are 1.
more reactive is a as it could lose electrons easily as valence electrons are 1.
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