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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
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Miscible liquids having slightly different boiling points can be separated by the
- evaporation
- distillation
- fractional distillation
- sedimentation
FILL IN THE BLANK
In a double decomposition precipitation reaction both the reactants must be ............ soluble.
What do you observe when :
an iron nail is kept in tap water for few days
Complete the statement by filling the gap using an appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
An ______ is drawn in between the reactants and products while writing the equation for a chemical reaction.
Distinguish by heating the following in dry test tubs.
Zinc nitrate and copper nitrate.
Select the correct answer for the following options:
The gas which reacts with oxygen to give a neutral liquid.
State the following reaction represent oxidation or reduction.
\[\ce{Cu++->Cu}\]
Rusting of Iron: undesirable change:: Dead plants turn into manure: ______.
A student took a solution of copper sulphate in a beaker and put a clean iron nail into it and left it for about an hour.
Write a word equation for the chemical change, if any.
______ is the chemical name of rust.
