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Amongst the following the total number of elements, which produce `H_(2) ` gas with sodium hydroxide is `:` `Zn,Al,Sn,Pb,P,Si`A. 3B. 4C. 5D. 6 |
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Answer» Correct Answer - C `Zn+2NaOHrarrNa_(2)ZnO_(2)+H_(2)uarr` `2Al+2NaOH+H_(2)Orarr2NaAlO_(2)+3H_(2)uarr` `Sn+2NaOH+H_(2)OrarrNa_(2)SnO_(3)+2H_(2)uarr` `Pb+2NaOH+H_(2)OrarrNa_(2)PbO_(3)+2H_(2)uarr` `Si+2NaOH+H_(2)O rarr Na_(2)SiO_(3)+2H_(2)uarr` `P_(4)+3NaOH+3H_(2)O rarr PH_(3)uarr+3NaH_(2)PO_(2)` |
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