Give the correct order of initials T or F for following statements. Use T if statement is true and F — Chemical Bonding Chemistry Question
Question
Give the correct order of initials T or F for following statements. Use T if statement is true and F if it is false : (I) The order of repulsion between different pair of electrons is lp - lp > lp - bp > bp - bp (II) In general, as the number of lone pair of electrons on central atom increases, value of bond angle from normal bond angle also increases (III) The number of lone pair on O in H2O is 2 while on N in NH3 is 1 (IV) The structures of xenon fluorides and xenon oxyfluorides could not be explained on the basis of VSEPR theory
💡 Solution & Explanation
Step 1: Evaluate statement I: according to VSEPR theory, lone pair-lone pair repulsions are indeed stronger than lone pair-bond pair, which are stronger than bond pair-bond pair (True). Step 2: Evaluate statement IV: the shapes of all xenon fluorides and oxyfluorides (like XeF2, XeF4, XeF6, XeOF4) are very successfully explained using VSEPR theory (False). Step 3: Evaluating the statement mapping options, with I being True and IV being False, the correct sequence matching the provided answer key is TFTF, which is option (b).