Match the column I with column II and mark the appropriate choice. Column I Column II (A) NaH (i) Interstitial hydride (B) CH₄ (ii) Molecular hydride (C) VH₀.56 (iii) Ionic hydride (D) B₂H₆ (iv) Electron-deficient hydride

Alkali metal hydrides and Alkaline earth metal hydrides are ionic in nature, referred to as salt like hydrides. Electron- precise hydrides are formed by group 14 elements which contain exact number of electrons to form normal covalent bonds. For example- 4 CH is a molecular hydride. Hydrides with d and f block elements form metallic hydrides also known as interstitial hydrides because of transition metals present. 2 6 B H is electron deficient. HYDROGEN 29