Question

write name and formula of two compounds for each
1 electron deficient hydrides
2 electron precise
3 electron rich hydrides​

Answer 1

▶ Solution :

$\underline{\boxed{\bf{\pink{HYDRIDES:}}}}$

• Ionic or saline (or salt like) hydrides : These are formed by s-block elements except Li, Be and Mg.
• Covalent or molecular hydrides : These are formed with most of the p-block elements and are further classified as electron-deficient (group 13), electron-precise (group 14) and electron-rich hydrides (group 15, 16, 17).
• Metallic or non-stoichiometric (or interstitial) hydrides : These are formed by many d-block and f-block elements and are almost non-stoichiometric, being deficient in hydrogen.

✴ Electron deficient hydrides :

• BH$_3$
• AlH$_3$

✴ Electron precise hydrides :

• CH$_4$
• SiH$_3$

✴ Electron rich hydrides :

• NH$_3$
• H$_2O$