The oxidation state of hydrogen in hydrides is -1.

What is the hybridization of water?

Hydrogen peroxide is __________ in nature.

Which of the following statements is true regarding the density of isotopes of the hydrogen?

Hydrogen has _________ ionization enthalpy.

Which of the following is not a use of hydrogen peroxide?

Manufacture of synthetic petrol involves _________

What is the problem that arises with hydrogen as a fuel?