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प्रश्न
Photosynthesis is a chemical reaction that takes place in the presence of ______.
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उत्तर
Photosynthesis is a chemical reaction that takes place in the presence of Sunlight.
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संबंधित प्रश्न
Complete and balance the following chemical equations
Na + H2 O →
FILL IN THE BLANK
A .............. change is a temporary change.
TRUE \ FALSE
Copper can displace iron from iron sulphate.
Fill in the blank.
Melting of ice is a _______ change.
Name the type of chemical reaction shown by the following equation :
Fe2O3 + 2Al → Al2O3 + 2Fe
Give reason for the following:
Colourless concentrated sulphuric acid in a test tube changes to blue on adding a small piece of copper to it.
Name: Gas with rotten egg smell.
Write your observation and a balanced equation in the case of the following substances being heated.
Ammonium chloride
When milk is mixed with coffee decoction, the colour of milk and decoction changes due to ______.
What is thermochemical reactions?
