Which of the following statements are not correct about the hydrides of Group 15 elements?

Which of the following statement is not correct about group-16?

Which of the following statements is not correct regarding halides of group 13 elements ?

An element belongs to group 16 and third period. Which of the following statement is (are) correct about the element ?

Which of the following is not correct about the hydrides of alkali metals ?

Which of the following statement is correct about the atom of an element ?

Which of the following statement is true about the elements of IA and IIA group elements?

Which of the following statement is true about the elements of IA and IIA group elements?

The basic strength of the hydrides of group 15 elements :