List of top Chemistry Questions on dihydrogen

Which of the following mixtures of gases represent water gas?
Which of the following mixtures of gases represent water gas?
The number of terminal and bridging hydrogens in \( B_2H_6 \) are respectively
Both CO2 and H2 gases are -
High purity (>99.95%) dihydrogen is obtained by
Which of the following processes does NOT involve use of dihydrogen?
The metal that products $H_2$ with both dil $HCl$ and $NaOH (aq)$ is
Which of the following statement about hydrogen is incorrect ?
When same amount of zinc is treated separately with excess of sulphuric acid and excess of sodium hydroxide solution, the ratio of volumes of hydrogen evolved is:
At its melting point ice is lighter than water because
Water gas is produced by
The reaction of $H_2 O_ 2$ with hydrogen sulphide is an example of ................ reaction.
The sum of protons,electrons and neutrons in the heaviest isotope of hydrogen is
The approximate mass of tritium oxide molecule is
Phosphorus cannot form $PH_5$ with its outer electronic configuration as $3s^23p^3$ because