Lakhmir Singh - Class 9 Chemistry Chapter 5 all questions
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The white of an egg, common salt, sugar and fine sand are added to water se.....
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The following precautions were listed for the experiment on the determinati.....
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Which of the following is the correct set of apparatus to separate common s.....
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A student added the following substances to water kept in four separate bea.....
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In an experiment, carbon disulphide was added to a test-tube containing a m.....
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A student has done the labelling for the experimental set-up for separating.....
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A teacher gave an impure sample of alum containing fine sand as impurity to.....
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When a student heated a colourless solid compound, then brown fumes of a ga.....
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Four students took separately the mixture of sand, common salt and ammonium.....
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Four set ups as given here were arranged to identify the gas evolved when d.....
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A student heats calculated amounts of iron filings and sulphur powder toget.....
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Which of the following mixture can be separated completely by the process o.....
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A student was asked by her science teacher to prepare a true solution. She .....
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We can show that iron is more reactive than copper (1) by preparing copper .....
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A student was asked to carry out a chemical reaction by placing four differ.....
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