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NCERT EXEMPLAR-IS MATTER AROUND US PURE-Is Matter Around Us Pure
- An element is sonorous and highly ductile. Under which category would ...
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- Give an example each for the mixture having the following characterist...
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- Fill in the blanks. (a) A colloid is a ……… mixture and its component...
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- Sucrose (sugar) crystals obtained from sugarcane and beetroot are mixe...
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- Give some examples of Tyndall effect observed in your surroundings?
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- Can we separate alcohol dissolved in water by using a separating funne...
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- On heating calcium carbonate gets converted into calcium oxide and car...
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- Non-metals are usually poor conductors of heat and electricity. They a...
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- Classify the substances given in Figure into elements and compounds.
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- Which of the following are not compounds? (a) Chlorine gas (b) Pota...
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- Fractional distillation is suitable for separation of miscible liquids...
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- (a) Under which category of mixtures will you classify alloys and why?...
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- Iron filings and sulphur were mixed together and divided into two part...
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- A child wanted to separate the mixture of dyes constituting a sample o...
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- A group of students took an old shoe box and covered it with a black p...
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- Classify each of the following, as a physical or a chemical change. Gi...
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- During an experiment the students were asked to prepare a 10% (mass/ma...
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- You are provided with a mixture containing sand, iron filings, ammoniu...
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- Arun has prepared 0.01% (by mass) solution of sodium chloride in water...
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- Calculate the mass of sodium sulphate required to prepare its 20% (mas...
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