1. what is a pure form of matter ?
2. How pure and Inpure is distinguished in science of matter?
3. Comment on purity of daily use materials with example?
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1. what is a pure form of matter ?
2. How pure and Inpure is distinguished in science of matter?
3. Comment on purity of daily use materials with example?
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Answer:
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Explanation:
1.An ELEMENT is the simplest form of matter which can not be changed further by chemical or physical methods. An ATOM is the simplest form of an element. ... A number of elements exist in a pure form in nature such as oxygen and nitrogen (in air), gold, silver, carbon (graphite and diamonds), and sulfur.
2.(i) Pure substances possess specific composition and their physical properties and the chemical properties also remain the same. (ii) Pure substance has sharp melting and boiling point. ... (i) The composition of the impure substance is not fixed. The impure substance is formed of two or more than two pure substances.
3.The measure of whether a substance is pure is known as purity. For example, pure iron would only contain iron atoms, and, as in the sugar cube mentioned above, pure sugar would only contain molecules of the substance called sucrose. ... Purity can also have an important impact on the chemical properties of a substance.
Examples of pure substances include tin, sulfur, diamond, water, pure sugar (sucrose), table salt (sodium chloride) and baking soda (sodium bicarbonate). Crystals, in general, are pure substances. Tin, sulfur, and diamond are examples of pure substances that are chemical elements.