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प्रश्न
What do you observe when Calcium is heated and then tested with moist blue and red litmus – paper?
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उत्तर
Calcium : Red litmus turns blue.
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संबंधित प्रश्न
Answer the question put against the following constituents of air :
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Write ‘True’ or ‘False’ in front of following statement.
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What is the significance of water vapour in air?
Write ‘true’ or ‘false for the following;
Carbon dioxide is given out during photosynthesis
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An inert gas which has a low boiling point and is used for producing very low temperatures
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When air is moving with cool and soothing, it is called a cyclone.
Carbon dioxide gas is ______.
Observe the picture given in figure carefully and answer the following questions.
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