Answer
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Hint: To solve this problem one should have a good command on chemistry. We will be going through the information on Sodium Sulphite, i.e. their formula, properties and uses and other information and by using this knowledge we can easily approach our answer.
Complete step by step solution:
Sodium sulphite is the inorganic compound having chemical formula $N{a_2}S{O_3}$ . It is a pale-yellow color water soluble solid, which is commercially used as Antioxidant and preservative. It is used in the paper industry and oxygen scavenger agent; it is used to treat water. Used in the photographic industry, it protects developer solutions from oxidation. In the textile industry it is used as a reducing agent as a bleaching, dichlorination agent. Its reducing properties are exploited in its use as a preservative to prevent food products. It is generally in powder, crystalline and tablet forms. Sodium sulfite is another dechlorinating agent widely used by utilities; it is slightly alkaline in nature.
Hence, the correct answer is option A.$N{a_2}S{O_3}$
NOTE - Sodium sulfite molecule contains two ionic bonds between the sodium cation and the sulfite anion. Sodium sulfite is generally prepared from the reaction between sulfur dioxide in gaseous form and sodium hydroxide in laboratories. The addition of a few drops of concentrated ${H_2}S{O_4}$ resulting in the liberation of $S{O_2}$ gas detects the depletion of $NaOH$.It is used in the paper industry and oxygen scavenger agent; it is used to treat water. Used in the photographic industry, it protects developer solutions from oxidation. In the textile industry it is used as a reducing agent as a bleaching, dichlorination agent.
Complete step by step solution:
Sodium sulphite is the inorganic compound having chemical formula $N{a_2}S{O_3}$ . It is a pale-yellow color water soluble solid, which is commercially used as Antioxidant and preservative. It is used in the paper industry and oxygen scavenger agent; it is used to treat water. Used in the photographic industry, it protects developer solutions from oxidation. In the textile industry it is used as a reducing agent as a bleaching, dichlorination agent. Its reducing properties are exploited in its use as a preservative to prevent food products. It is generally in powder, crystalline and tablet forms. Sodium sulfite is another dechlorinating agent widely used by utilities; it is slightly alkaline in nature.
Hence, the correct answer is option A.$N{a_2}S{O_3}$
NOTE - Sodium sulfite molecule contains two ionic bonds between the sodium cation and the sulfite anion. Sodium sulfite is generally prepared from the reaction between sulfur dioxide in gaseous form and sodium hydroxide in laboratories. The addition of a few drops of concentrated ${H_2}S{O_4}$ resulting in the liberation of $S{O_2}$ gas detects the depletion of $NaOH$.It is used in the paper industry and oxygen scavenger agent; it is used to treat water. Used in the photographic industry, it protects developer solutions from oxidation. In the textile industry it is used as a reducing agent as a bleaching, dichlorination agent.
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