GK
BASIC GENERAL KNOWLEDGE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following chemicals is useful in photography?
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Silver bromide
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Sodium chloride
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Aluminium hydroxide
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Potassium nitrate
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Explanation:
Detailed explanation-1: -Compound ‘AgBr’ is used in photography. Three silver compounds used in photography are silver chloride (AgCl), silver bromide (AgBr), and silver iodide (AgI).
Detailed explanation-2: -In Photography Film The most well-known use of bromine, is in making photographic films. Silver bromide is light-sensitive and is used to manufacture photography plates. Its microscopic particles when exposed to light, undergo a change as a result of chemical reaction.
Detailed explanation-3: -NaBr is used in photography as a sensitizing agent in the form of sodium bromide paper. It is also used as a preservative in foods and as a disinfectant.
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