The chemical name of borax is a ________

Which of the following is the correct order for the stability of plus one oxidation State?

Which of the following is known as the Black lead?

Boron is used as a __________

What is the second hardest material known?

Which of the following is a colourless gas?

Which of the following property is not a similarity between Boron and silicon?

Do Boron and silicon react with electropositive metals?