MCQ
$Be$ and $Al$ exhibit many properties which are similar, but the two elements differ in :
- AExhibiting amphoteric nature in their oxides
- ✓Forming polymeric hydrides
- CExhibiting maximum covalency in compounds
- DForming covalent halides
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

( $U$ : आंतरिक ऊर्जा (internal energy), $S$ : एंट्रॉपी (entropy), $p$ : दाब (pressure), $V$ : आयतन (volume), $R$ : गैस नियतांक (gas constant)
(दिया गयाः स्थिर आयतन पर गैस की मोलर ऊष्माधारिता (molar heat capacity at constant volume), $C_{V, m }$ का मान $\frac{5}{2} R$ है)