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प्रश्न
Name: A greenish-yellow gas.
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उत्तर
Chlorine
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संबंधित प्रश्न
Complete and balance the following chemical equations:
Fe `"SO"_4` + NaOH `→`
(aq.) (aq.)
Explain the following reaction with one suitable example of Combination reactions .
When hydrogen burns in oxygen, water is formed; when electricity is passed through water, hydrogen and oxygen are given out. Name the type of chemical change involved in the two cases.
Give a chemical test to distinguish between the following gases.
NH3 and SO2
Distinguish by heating the following in dry test tubs.
Ammonium Chloride and iodine.
What is a chemical reaction?
A chemical reaction is often accompanied by external indications or characteristics.
The percentage composition of Nitrogen in Ureas is ______.
State whether the following statement is true or false:
When a candle burns, both physical and chemical changes take place.
Classify the following processes into physical or chemical changes:
- Beating of aluminium metal to make aluminium foil.
- Digestion of food.
- Cutting of a log of wood into pieces.
- Burning of crackers.
