Which of the following is a mixture ?Salt, Air, Water, Alum, Sugar
Among the given options, the air is a mixture as it is composed of different gases.
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- Which one of the following is most likely to exhibit Tyndall effect ?(a) sugar and water mixture(b) potash alum and water mixture(c) chalk powder and water mixture(d) potassium permanganate and water mixture
- Which of the following substances are elements ?Water, Salt, Mercury, Iron, Marble, Diamond, Wood, Nitrogen, Air, Graphite, Hydrogen, Oxygen, Sugar, Chlorine
- How would you separate a mixture of sugar and salt?
- Which of the following mixture cannot be separated by using water as the solvent?(a) copper sulphate and sand (b) sand and potash alum(c) sand and sulphur (d) sugar and sand
- (a) State the main points of difference between homogeneous and heterogeneous mixtures.(b) Classify the following materials as homogeneous mixtures and heterogeneous mixtures :Soda-water, Wood, Air, Soil, Vinegar, Alcohol and water mixture, Petrol and water mixture, Chalk and water mixture, Sugar and water mixture, Copper sulphate solution.
- Is the mixing of sugar or salt in water is a reversible or irreversible change?
- How can you obtain pure water from a salt-water mixture (or salt-solution)? Draw a neat and labelled diagram of the apparatus you would use to obtain pure water from a salt-water mixture (or salt-solution).
- Which of the following is not a mixture?(a) kerosene (b) air(c) alcohol (d) petrol
- A few substances are arranged in the increasing order of ‘forces of attraction’ between their particles. Which one of the following represents a correct arrangement?Water, air, windAir, sugar, oilOxygen, water, sugarSalt, juice, air
- State one property in which a solution of sugar in water resembles a mixture of sugar and sand, and one property in which it differs from it.
- Explain why, a solution of salt in water is considered a mixture and not a compound.
- A mixture of salt and water is provided to you. Name the process by which you will get both the components separately.
- Explain the method that can be used for separating the following mixture:(i) Sand and husk(ii) Wheat, sugar and stalk(iii) Water and petrol(iv) Rice and salt(v) Sand and salt
- What elements do the following compounds contain?Sugar, Common salt
- State three reasons why you think air is a mixture and water is a compound.
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