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The acidic solution of salt produced a deep blue colour with starch iodide solution. The salt may be
- a)Chloride
- b)Acetate
- c)Nitrite
- d)Bromide
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
The acidic solution of salt produced a deep blue colour with starch io...
Explanation:
Iodine test is one of the tests to identify the presence of starch in a given solution. Starch iodide test is carried out by adding potassium iodide (KI) to the solution containing starch followed by adding iodine solution (I2). The deep blue colour is obtained due to the formation of a complex between iodine and amylose, a component of starch.
Acidic solution of salt produced a deep blue colour with starch iodide solution indicates the presence of nitrite ions in the salt. The reaction can be represented as follows:
NO2^- + 2H+ + 2I^- → I2 + NO + H2O
The nitrite ions react with hydrogen ions and iodide ions present in the starch iodide solution to form iodine. This iodine reacts with starch to produce a deep blue colour.
Conclusion:
Hence, the correct option is C) Nitrite.
Iodine test is one of the tests to identify the presence of starch in a given solution. Starch iodide test is carried out by adding potassium iodide (KI) to the solution containing starch followed by adding iodine solution (I2). The deep blue colour is obtained due to the formation of a complex between iodine and amylose, a component of starch.
Acidic solution of salt produced a deep blue colour with starch iodide solution indicates the presence of nitrite ions in the salt. The reaction can be represented as follows:
NO2^- + 2H+ + 2I^- → I2 + NO + H2O
The nitrite ions react with hydrogen ions and iodide ions present in the starch iodide solution to form iodine. This iodine reacts with starch to produce a deep blue colour.
Conclusion:
Hence, the correct option is C) Nitrite.
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Community Answer
The acidic solution of salt produced a deep blue colour with starch io...
Starch iodide soln contain iodide which is oxidised by NO^-1 to I2 which gives blue colour with starch.
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The acidic solution of salt produced a deep blue colour with starch iodide solution. The salt may bea)Chlorideb)Acetatec)Nitrited)BromideCorrect answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about The acidic solution of salt produced a deep blue colour with starch iodide solution. The salt may bea)Chlorideb)Acetatec)Nitrited)BromideCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The acidic solution of salt produced a deep blue colour with starch iodide solution. The salt may bea)Chlorideb)Acetatec)Nitrited)BromideCorrect answer is option 'C'. Can you explain this answer?.
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