Which of the following statements is incorrect about noble gases?

Which of the following statements is incorrect regarding dinitrogen pentoxide?

Which of the following is used for vulcanization purposes in the rubber industry?

Which allotrope of phosphorus is the most reactive?

What is the primary constituent of sand?

In the contact process, SO2 is passed twice through the catalytic converted. Why?

Which of the following is the most popular oxoacid of sulfur?

What are the complexes formed by nitric oxide with transition metals called?