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प्रश्न
How is a flame test performed?
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उत्तर
The flame test is a qualitative test used in chemistry to help determine the identity or possible identity of a metal or metalloid ion found in an ionic compound. If the compound is placed in the flame of a gas burner, there may be a characteristic color given off that is visible to the naked eye.
Example: The test is performed by dipping a wire or wooden splint into a sample solution or coating it with the powdered metal salt. The color of a gas flame is observed as the sample is heated. If a wooden splint is used, it's necessary to wave the sample through the flame to avoid setting the wood on the fire.
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संबंधित प्रश्न
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Write symbolic representation for the following word equation and balance them :
Calcium carbonate → Calcium oxide + Carbon dioxide.
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AgNO3(aq) + NaCI(aq) → AgCI ↓ + NaNO3(aq)
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Potassium permanganate + hydrochloric acid → potassium chloride + manganese chloride + chlorine + water
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How do acids and bases react with each other? What is the name of the process? What product is obtained from these reactions?
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
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Write word equation for the following chemical reaction given below. Also state the observation seen in the case.
NaCl + AgNo3 → AgCU ↓ + NaN03
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NaOH + Cl2 → NaCl + NaClO + H2O
