Which of the following process is/are associated with no change of hybridisation of the underlined compound?

Which of the following process is/are associated with no change of hyb

1.	Which of the following process is/are associated with no change of hybridisation of the underlined compound?
Answer» `ul(B)_(2) H_(6)` is DISSOLVED in THF `ul(Al)(OH)_(3)` PRECIPITATE dissolved in NaOH `ul(SIF)_(4)` vapour is passed through liquid HF Hydrolysis of `ul(SI)Cl_(4)` Answer :A