Match list I with List II. List – I List - II A. Electron deficient hydride I. MgH2 B. Electron rich — JEE Mains Chemistry Past Papers Chemistry Question
Question
Match list I with List II. List – I List - II A. Electron deficient hydride I. MgH2 B. Electron rich hydride II. HF C. Electron precise hydride III. B2H6 D. Saline hydride IV. CH4 Choose the correct answer from the options given below. (A) A-II, B-III, C-IV, D-I (B) A-III, B-II, C-I, D-IV (C) A-II, B-III, C-I, D-III (D) A-III, B-II, C-IV, D-I
💡 Solution & Explanation
Electron deficient hydride : Hydride which of not sufficient number of electron to form normal covalent bond. e.g. Hydride of group 13 (BH3, (B2H6), AlH3(Al2H6)) Electron precise hydride : hydride which contain sufficient valence electron to form covalent bond e.g. Hydride of group 14 (CH4 , SiH4 , GeH4 , SnH4 , PbH4) Electron rich hydride which contains excess of valence electron to form covalent bond. e.g. Hydride of group 15 (NH3 , PH3), and hydride of group 17 (HF, HCl, Br) Saline hydride : hydrides of Alkaline and alkaline earth metal e.g. (NaH, KH, MgH2, CH2)