What is formed by burning of natural gas ?
Which gas is evolved if sodium reacts with water ?
Which substance can decolourise the blue aqueous solution of copper sulphate ?
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1. The burning of fossil fuels -- like coal, oil and natural gas -- releases gases into the air, mainly carbon dioxide, sulfur dioxide, methane and nitrous oxide.
2. Sodium metal reacts rapidly with water to form a colourless solution of sodium hydroxide (NaOH) and hydrogen gas (H2). The resulting solution is basic because of the dissolved hydroxide. The reaction is exothermic.
3. I don't know...
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Answer: burning of natural gas:
it will give carbon dioxide and water
When sodium reacts with water
hydrogen gas is liberated
When iron fillings are added to aqueous solution of copper sulphate it will decolurise it
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