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The alkaline earth metals burn in oxygen to form the monoxide, MO which, except for BeO,
have rock-salt structure (BeO has wurtzite structure). The BeO is essentially covalent in nature.
The enthalpies of formation of these oxides are quite high and consequently they are very stable
to heat. BeO is amphoteric while oxides of other elements are ionic in nature. All these oxides
except BeO are basic in nature and react with water to form sparingly soluble hydroxides.
Solution
The alkaline earth metals burn in oxygen to form the monoxide, MO which, except for BeO,
have rock-salt structure (BeO has wurtzite structure). The BeO is essentially covalent in nature.
The enthalpies of formation of these oxides are quite high and consequently they are very stable
to heat. BeO is amphoteric while oxides of other elements are ionic in nature. All these oxides
except BeO are basic in nature and react with water to form sparingly soluble hydroxides.

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The alkaline earth metals burn in oxygen to form the monoxide, MO wh.pdf

  • 1. The alkaline earth metals burn in oxygen to form the monoxide, MO which, except for BeO, have rock-salt structure (BeO has wurtzite structure). The BeO is essentially covalent in nature. The enthalpies of formation of these oxides are quite high and consequently they are very stable to heat. BeO is amphoteric while oxides of other elements are ionic in nature. All these oxides except BeO are basic in nature and react with water to form sparingly soluble hydroxides. Solution The alkaline earth metals burn in oxygen to form the monoxide, MO which, except for BeO, have rock-salt structure (BeO has wurtzite structure). The BeO is essentially covalent in nature. The enthalpies of formation of these oxides are quite high and consequently they are very stable to heat. BeO is amphoteric while oxides of other elements are ionic in nature. All these oxides except BeO are basic in nature and react with water to form sparingly soluble hydroxides.