Which of the following is incorrect about Hypophosphorous acid?

If a aryl diazonium salt is treated with sulfur dioxide, what product forms?

Which group 16 element is the most electronegative?

Which of the following is a suffocating gas produced during incomplete combustion of fuels?

Which oxide of nitrogen is released from car engines?

How many stable isotopes does the nitrogen atom have?

From which type of phosphorus is alpha -black phosphorus formed?

What temperature does dinitrogen oxide dissociate at?