Which of the following options is correct regarding periodic properties?

Which of the following options are correct regarding prism?

Which of the following options is correct regarding the property of benzenediazonium fluoroborate?

Which of the following option is incorrect regarding the property of 'hypo'

Which of the following is correct regarding the variation of properties in a group of the periodic table?

Which of the following options is not correct regarding the order of the frequency of electromagnetic radiation?

Which of the following option is correct regarding borax bead test?

Which of the following properties is not correct regarding red phosphorus?