Question
Compare chemical properties of metals and non-metals.
✓
Answer
i. Metals (like alkali metals) react vigorously with oxygen to form oxides which reacts with water to form strong bases.
e. g. Sodium $( Na )$ reacts with oxygen to form $Na _2 O$ which produces NaOH on reaction with water.
ii. Nonmetals (like halogens) react with oxygen to form oxides which on reaction with water form strong acids. e.g. Chlorine reacts with oxygen to form $Cl _2 O _7$ which produces $HClO _4$ on reaction with water.
e. g. Sodium $( Na )$ reacts with oxygen to form $Na _2 O$ which produces NaOH on reaction with water.
ii. Nonmetals (like halogens) react with oxygen to form oxides which on reaction with water form strong acids. e.g. Chlorine reacts with oxygen to form $Cl _2 O _7$ which produces $HClO _4$ on reaction with water.
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e. $6.398 \times 10^{-3} km$
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