When steam is passed over red hot iron,the substances formed are

Which property among the following is the same for both hydrogen and deuterium molecules?

Which compound is used in hydrogen generators?

When $1:2$ equivalence ratio of the gases $X$ and $Y$ are heated to $573 \ K - 673 \ K$ at $200-300 \ atm$ in the presence of $ZnO-Cr_2O_3$ catalyst,methanol is formed. Here,the gases $X$ and $Y$ are $X$ and $Y$ respectively.

Which one of the following would lose weight on exposure to atmosphere?

What is the sum of neutrons and protons in the heaviest isotope of hydrogen?