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Bunsen burner works on principle.

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Important Questions on Know About Some Common Gases
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A lit Bunsen burner with closed or partially closed air _____ gives a yellow safety flame.

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A mixture of milk and groundnut oil can be separated by :

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HARD
The instrument show in the above diagram is an _____ balance.

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I.Separation of colloidal particles from solution- centrifugation.
II.Separation of two miscible liquids- separating funnel.
III.Separation of pure substance from its impure form- crystallisation.
IV.Separation of components with the help of the same solvent- chromatography.

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