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Direction (Q. Nos. 16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).
Passage
Hydrated sodium thiosulphate, Na2S2O3 .5H2O is called hypo. It can be prepared by Spring’s reaction by adding iodine to a mixture of sodium sulphide and sodium sulphite.
Na2S + Na2SO3 + I2 → 2NaI + Na2S2O3 (Spring's reaction)
It is an efflorescent substance and at 215°C, it is completely dehydrated to Na2S2O3. Its reaction with iodine is used fo r the iodometric estimation of oxidising agents like CuSO4, CaOCI2, KMnO4, MnO2, etc., which on reaction with KI liberate I2. It is used in the bleaching industry to destroy excess chlorine on fabrics. It is used in photography as fixer since, it dissolves unexposed AgBr on the film.
Q. 
Select the incorrect statement regarding hypo.
  • a)
    It is known as an antichlor
  • b)
    It is an efflorescent substance
  • c)
    AgBr with hypo forms a soluble complex, Na3[Ag(S2O3)2]
  • d)
    Thiosulphate ion    has pyramidal shape
Correct answer is option 'D'. Can you explain this answer?
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Direction (Q. Nos.16 and 17) This section contains a paragraph, descri...
In , central atom sulphur is sp3-hybridised and it has tetrahedral shape.
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Read the following text and answer the following questions on the basis of the same:In one of his experiments on interference, August Jean Fresnel used a biprism to induce interference between two beams. He split a diverging beam of light into two parts by using the biprism to refract them. This resulted in two split beams which acted as if they were from two coherent sources and which therefore interfered with each other.A Fresnel Biprism is a thin double prism placed base to base and have very small refracting angle ( 0.5°). This is equivalent to a single prism with one of its angle nearly 179° and other two of 0.5° each.In Young’s double Slits experiment, a single source is split in two coherent sources. For the Young’s slits experiment, we must approximate that the slits act as point sources. This however is not the case, since the slits have finite width. In this way, it gives rise to unwanted diffraction effects that causes errors.The Fresnel biprism experiment overcomes this problem.A Fresnel biprism is a variation of Young’s Slits experiment. When monochromatic light through a narrow slit falls on biprism that divides it into two components. One of these component is refracted from upper portion of biprism and the other one refracted through lower portion. Two virtual coherent sources formed from the original source. In this case, two virtual coherent sources are point sources and replace slits in Young’s experiment.Q. Base angles of Fresnel biprism are

Read the following text and answer the following questions on the basis of the same:In one of his experiments on interference, August Jean Fresnel used a biprism to induce interference between two beams. He split a diverging beam of light into two parts by using the biprism to refract them. This resulted in two split beams which acted as if they were from two coherent sources and which therefore interfered with each other.A Fresnel Biprism is a thin double prism placed base to base and have very small refracting angle ( 0.5°). This is equivalent to a single prism with one of its angle nearly 179° and other two of 0.5° each.In Young’s double Slits experiment, a single source is split in two coherent sources. For the Young’s slits experiment, we must approximate that the slits act as point sources. This however is not the case, since the slits have finite width. In this way, it gives rise to unwanted diffraction effects that causes errors.The Fresnel biprism experiment overcomes this problem.A Fresnel biprism is a variation of Young’s Slits experiment. When monochromatic light through a narrow slit falls on biprism that divides it into two components. One of these component is refracted from upper portion of biprism and the other one refracted through lower portion. Two virtual coherent sources formed from the original source. In this case, two virtual coherent sources are point sources and replace slits in Young’s experiment.Q. Which problem of Young’s double slit experiment is overcome by Fresnel biprism?

Direction (Q. Nos.16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).PassageHydrated sodium thiosulphate, Na2S2O3.5H2Ois called hypo. It can be prepared by Spring’s reaction by adding iodine to a mixture of sodium sulphide and sodium sulphite.Na2S + Na2SO3+ I2→ 2NaI + Na2S2O3(Spring's reaction)It is an efflorescent substance and at 215°C, it is completely dehydrated to Na2S2O3. Its reaction with iodine is used fo r the iodometric estimation of oxidising agents like CuSO4, CaOCI2, KMnO4, MnO2, etc., which on reaction with KI liberate I2. It is used in the bleaching industry to destroy excess chlorine on fabrics. It is used in photography as fixer since, it dissolves unexposed AgBr on the film.Q.Select the incorrect statement regarding hypo.a)It is known as an antichlorb)It is an efflorescent substancec)AgBr with hypo forms a soluble complex, Na3[Ag(S2O3)2]d)Thiosulphate ion has pyramidal shapeCorrect answer is option 'D'. Can you explain this answer?
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Direction (Q. Nos.16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).PassageHydrated sodium thiosulphate, Na2S2O3.5H2Ois called hypo. It can be prepared by Spring’s reaction by adding iodine to a mixture of sodium sulphide and sodium sulphite.Na2S + Na2SO3+ I2→ 2NaI + Na2S2O3(Spring's reaction)It is an efflorescent substance and at 215°C, it is completely dehydrated to Na2S2O3. Its reaction with iodine is used fo r the iodometric estimation of oxidising agents like CuSO4, CaOCI2, KMnO4, MnO2, etc., which on reaction with KI liberate I2. It is used in the bleaching industry to destroy excess chlorine on fabrics. It is used in photography as fixer since, it dissolves unexposed AgBr on the film.Q.Select the incorrect statement regarding hypo.a)It is known as an antichlorb)It is an efflorescent substancec)AgBr with hypo forms a soluble complex, Na3[Ag(S2O3)2]d)Thiosulphate ion has pyramidal shapeCorrect answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Direction (Q. Nos.16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).PassageHydrated sodium thiosulphate, Na2S2O3.5H2Ois called hypo. It can be prepared by Spring’s reaction by adding iodine to a mixture of sodium sulphide and sodium sulphite.Na2S + Na2SO3+ I2→ 2NaI + Na2S2O3(Spring's reaction)It is an efflorescent substance and at 215°C, it is completely dehydrated to Na2S2O3. Its reaction with iodine is used fo r the iodometric estimation of oxidising agents like CuSO4, CaOCI2, KMnO4, MnO2, etc., which on reaction with KI liberate I2. It is used in the bleaching industry to destroy excess chlorine on fabrics. It is used in photography as fixer since, it dissolves unexposed AgBr on the film.Q.Select the incorrect statement regarding hypo.a)It is known as an antichlorb)It is an efflorescent substancec)AgBr with hypo forms a soluble complex, Na3[Ag(S2O3)2]d)Thiosulphate ion has pyramidal shapeCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction (Q. Nos.16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).PassageHydrated sodium thiosulphate, Na2S2O3.5H2Ois called hypo. It can be prepared by Spring’s reaction by adding iodine to a mixture of sodium sulphide and sodium sulphite.Na2S + Na2SO3+ I2→ 2NaI + Na2S2O3(Spring's reaction)It is an efflorescent substance and at 215°C, it is completely dehydrated to Na2S2O3. Its reaction with iodine is used fo r the iodometric estimation of oxidising agents like CuSO4, CaOCI2, KMnO4, MnO2, etc., which on reaction with KI liberate I2. It is used in the bleaching industry to destroy excess chlorine on fabrics. It is used in photography as fixer since, it dissolves unexposed AgBr on the film.Q.Select the incorrect statement regarding hypo.a)It is known as an antichlorb)It is an efflorescent substancec)AgBr with hypo forms a soluble complex, Na3[Ag(S2O3)2]d)Thiosulphate ion has pyramidal shapeCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Direction (Q. Nos.16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).PassageHydrated sodium thiosulphate, Na2S2O3.5H2Ois called hypo. It can be prepared by Spring’s reaction by adding iodine to a mixture of sodium sulphide and sodium sulphite.Na2S + Na2SO3+ I2→ 2NaI + Na2S2O3(Spring's reaction)It is an efflorescent substance and at 215°C, it is completely dehydrated to Na2S2O3. Its reaction with iodine is used fo r the iodometric estimation of oxidising agents like CuSO4, CaOCI2, KMnO4, MnO2, etc., which on reaction with KI liberate I2. It is used in the bleaching industry to destroy excess chlorine on fabrics. It is used in photography as fixer since, it dissolves unexposed AgBr on the film.Q.Select the incorrect statement regarding hypo.a)It is known as an antichlorb)It is an efflorescent substancec)AgBr with hypo forms a soluble complex, Na3[Ag(S2O3)2]d)Thiosulphate ion has pyramidal shapeCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of Direction (Q. Nos.16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).PassageHydrated sodium thiosulphate, Na2S2O3.5H2Ois called hypo. It can be prepared by Spring’s reaction by adding iodine to a mixture of sodium sulphide and sodium sulphite.Na2S + Na2SO3+ I2→ 2NaI + Na2S2O3(Spring's reaction)It is an efflorescent substance and at 215°C, it is completely dehydrated to Na2S2O3. Its reaction with iodine is used fo r the iodometric estimation of oxidising agents like CuSO4, CaOCI2, KMnO4, MnO2, etc., which on reaction with KI liberate I2. It is used in the bleaching industry to destroy excess chlorine on fabrics. It is used in photography as fixer since, it dissolves unexposed AgBr on the film.Q.Select the incorrect statement regarding hypo.a)It is known as an antichlorb)It is an efflorescent substancec)AgBr with hypo forms a soluble complex, Na3[Ag(S2O3)2]d)Thiosulphate ion has pyramidal shapeCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Direction (Q. Nos.16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).PassageHydrated sodium thiosulphate, Na2S2O3.5H2Ois called hypo. It can be prepared by Spring’s reaction by adding iodine to a mixture of sodium sulphide and sodium sulphite.Na2S + Na2SO3+ I2→ 2NaI + Na2S2O3(Spring's reaction)It is an efflorescent substance and at 215°C, it is completely dehydrated to Na2S2O3. Its reaction with iodine is used fo r the iodometric estimation of oxidising agents like CuSO4, CaOCI2, KMnO4, MnO2, etc., which on reaction with KI liberate I2. It is used in the bleaching industry to destroy excess chlorine on fabrics. It is used in photography as fixer since, it dissolves unexposed AgBr on the film.Q.Select the incorrect statement regarding hypo.a)It is known as an antichlorb)It is an efflorescent substancec)AgBr with hypo forms a soluble complex, Na3[Ag(S2O3)2]d)Thiosulphate ion has pyramidal shapeCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Direction (Q. Nos.16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).PassageHydrated sodium thiosulphate, Na2S2O3.5H2Ois called hypo. It can be prepared by Spring’s reaction by adding iodine to a mixture of sodium sulphide and sodium sulphite.Na2S + Na2SO3+ I2→ 2NaI + Na2S2O3(Spring's reaction)It is an efflorescent substance and at 215°C, it is completely dehydrated to Na2S2O3. Its reaction with iodine is used fo r the iodometric estimation of oxidising agents like CuSO4, CaOCI2, KMnO4, MnO2, etc., which on reaction with KI liberate I2. It is used in the bleaching industry to destroy excess chlorine on fabrics. It is used in photography as fixer since, it dissolves unexposed AgBr on the film.Q.Select the incorrect statement regarding hypo.a)It is known as an antichlorb)It is an efflorescent substancec)AgBr with hypo forms a soluble complex, Na3[Ag(S2O3)2]d)Thiosulphate ion has pyramidal shapeCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Direction (Q. Nos.16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).PassageHydrated sodium thiosulphate, Na2S2O3.5H2Ois called hypo. It can be prepared by Spring’s reaction by adding iodine to a mixture of sodium sulphide and sodium sulphite.Na2S + Na2SO3+ I2→ 2NaI + Na2S2O3(Spring's reaction)It is an efflorescent substance and at 215°C, it is completely dehydrated to Na2S2O3. Its reaction with iodine is used fo r the iodometric estimation of oxidising agents like CuSO4, CaOCI2, KMnO4, MnO2, etc., which on reaction with KI liberate I2. It is used in the bleaching industry to destroy excess chlorine on fabrics. It is used in photography as fixer since, it dissolves unexposed AgBr on the film.Q.Select the incorrect statement regarding hypo.a)It is known as an antichlorb)It is an efflorescent substancec)AgBr with hypo forms a soluble complex, Na3[Ag(S2O3)2]d)Thiosulphate ion has pyramidal shapeCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Direction (Q. Nos.16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).PassageHydrated sodium thiosulphate, Na2S2O3.5H2Ois called hypo. It can be prepared by Spring’s reaction by adding iodine to a mixture of sodium sulphide and sodium sulphite.Na2S + Na2SO3+ I2→ 2NaI + Na2S2O3(Spring's reaction)It is an efflorescent substance and at 215°C, it is completely dehydrated to Na2S2O3. Its reaction with iodine is used fo r the iodometric estimation of oxidising agents like CuSO4, CaOCI2, KMnO4, MnO2, etc., which on reaction with KI liberate I2. It is used in the bleaching industry to destroy excess chlorine on fabrics. It is used in photography as fixer since, it dissolves unexposed AgBr on the film.Q.Select the incorrect statement regarding hypo.a)It is known as an antichlorb)It is an efflorescent substancec)AgBr with hypo forms a soluble complex, Na3[Ag(S2O3)2]d)Thiosulphate ion has pyramidal shapeCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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