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2) Quantitative determination of ephedrine is carried out by ( 1
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On heating blue coloured powder of copper nitrate
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on heating blue coloured powder of copper (II) nitrate in a boiling tube copper oxide (black) oxygen gas aNd a brown gas X is formed ..1) write a balanced chemical …
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Why does a fish die when taken out of water
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Name the structure which protects the spinal cord
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The innermost part of a flower is called the________.
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What is the advantage of Miniature circuit Breaker?
Aluminium foil is used for wrapping food because
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Give reasons for the following:
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(c) Copper cannot displace …
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Which of the following is a natural resource
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What happens when zinc reacts with hydrochloric acid?
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Sprain is caused by excessive pulling of
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1. Which gas is the major component of air?
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Which device is used to measure atmospheric pressure
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Tooth enamel is the hardest substance in our body. Name the compound of which it is made up of. At what pH of the mouth it gets corroded ? State …
An element with atomic number 21 is a
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An element with atomic number 21. what is the place of the element in the periodic table? why
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What are the quantities that can be measured called
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Difference between aerobic and anaerobic respiration for class 7
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Why air moves from high pressure to low pressure
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Anaerobic bacteria digest animal waste and produce biogas (Change – A).The biogas is then burnt as fuel (Change – B). The following statements pertain to these changes. Choose the correct …
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Why do animals move from one place to another?
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