Which of the following element is an alkali as well as halogen?

Hydrogen is used in the manufacture of _____

How does vegetable oil gets converted into vegetable ghee?

Interstitial hydrides are also called as ________

What is freshly prepared hydrogen known as?

Dihydrogen is relatively inert at room temperature.

Which of the following is Radioactive?

Hydrogen is used in an oxyhydrogen flame.