Beryllium and aluminium exhibit many similar properties. However,they differ in which of the following aspects?
- AMaximum covalency in compounds
- BAmphoteric nature of their oxides
- CFormation of covalent halides
- DFormation of polymeric hydrides
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Match the following:
Metal Uses $1. \text{Be}$ $c. \text{To prepare windows of X-rays}$ $2. \text{Ca}$ $d. \text{To remove air from vacuumized tubes}$ $3. \text{Mg}$ $a. \text{To prepare Grignard reagent}$
| Metal | Uses |
|---|---|
| $1. \text{Be}$ | $c. \text{To prepare windows of X-rays}$ |
| $2. \text{Ca}$ | $d. \text{To remove air from vacuumized tubes}$ |
| $3. \text{Mg}$ | $a. \text{To prepare Grignard reagent}$ |
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