What is O.N of H in NaH?

What is the O.N of C in C_(6)H_(12)O_(6) ?

10 volume of H_(2)O_(2) = x(N) H_(2)O_(2) . What is the value of x?

In a determination of P an aqueous solution of NaH_(2)PO_(4) is treated with a mixture of ammonium and magnesium ammonium phosphate Mg(NH_(4))PO_(4).6H_(2)O . This is heated and decomposed to magnesium pyrophosphate, Mg_(2)P_(2)O_(7) which is weighed . A solution of NaH_(2)PO_(4) yeilded 1.11 g of Mg_(2)P_(2)O_(7) . What weight of NaH_(2)PO_(4) was present originally ? (P = 31)

In the reaction NO_(2)^(-) +H_(2)O rarr NO_(3)^(-)+2H^(+)+"n"e^(-) What is the value of "n" ?

Analyse the equation: 2Na+H_2 rarr 2NaH Hydrogen is in…………….. oxidation state in NaH