Which of the following oxidation States to group 14 elements exhibit?

Which of the following is a colourless gas?

Complex formation is more likely to be possible in ______

Which of the following material is used for making fireproof clothes?

Which of the following is an amorphous allotrope of carbon?

The group 14 elements form _________ hydrides.

Which of the following is not a property of carbon monoxide?

All the oxides and hydroxides of Boron family are ________ in nature.