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प्रश्न
When carbon dioxide is passed through lime water, it turns milky due to the formation of ______.
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उत्तर
When carbon dioxide is passed through limewater, it turns milky due to the formation of calcium carbonate (CaCO3)
Explanation:
Calcium carbonate is formed when carbon dioxide reacts with the calcium hydroxide in lime water, causing it to have a milky appearance.
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संबंधित प्रश्न
Complete and balance the following chemical equations:
Zn + `"H"_2"SO"_4` `→`
(dil)
FILL IN THE BLANK
In a ............ change, new substances are formed.
Fill in the blank:
The substances which undergo chemical change are called _______
Give an example of a reaction where the following are involved
Electricity
Select the correct answer for the following options:
The gas which reacts with oxygen to give a neutral liquid.
A chemical reaction is often accompanied by external indications or characteristics which include –
- Colour change
- Effervescence or gas evolved
- Evolution or absorption of heat
- Formation of a precipitate.
With reference to each of the above indications, state the external indication seen during – Addition of dilute hydrochloric acid to silver nitrate.
Rusting of Iron: undesirable change:: Dead plants turn into manure: ______.
______ change results in the change of the substance.
______ occurs in the absence of air and in the presence of micro-organisms such as yeast.
What are the chemical reactions that occur in everyday life?
