MCQs: When magnesium element is burnt with oxygen it makes a compound called
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MCQs: Salt, sugar, chalk and sand are all
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MCQs: The gas which is used as cooling agent is
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MCQs: To make specific compound, elements are mixed in a fix proportion by
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MCQs: The dense white fumes which can be seen upon gas ammonia are due to mixing of
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MCQs: With one hundred elements the compounds that may be made, will be above
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MCQs: The formation of compounds involve
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MCQs: Water is broken down into small units by passing it through
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MCQs: A very light and inert gas is
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MCQs: The properties of compound, as compare to properties of its constituents are
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MCQs: Iron sulfide is formed when iron and sulphur are together
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MCQs: The general properties of metals are
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MCQs: The building blocks of all matter including living and non living things are
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MCQs: A greenish yellow poisonous gas is
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MCQs: "There are only four elements including air, earth, water and fire", it was believed by
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MCQs: Non metals include
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MCQs: Non 'metals' are
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MCQs: Density, boiling point and conductivity of heat are all
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MCQs: The process which involves in breaking down the element by passing electricity through it is called
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MCQs: Chinese thought that the number of elements were
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