Which of the following statements concerning Noble gases in incorrect ?

Which of the following statements regarding noble gases is false ?

Which one of the following statement concerning growth regulators is incorrect .

Which one of the following statement concerning growth regulators is incorrect .

Which of the following statements about noble gases is false ?

Which of the following statements are correct and which are incorrect ? Smoke is a mixture of solids and gases,

A book leans against a crate on a table. Neither is moving Which of the following statements concerning this situation is/are incorrect. .

A book leans against a crate on a table. Neither is moving . Which of the following statements concerning this situation is/are incorrect?

Which of the following statements is not true about noble gases ?