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Which of the following is incorrect statement?
- a)Alkali metal do not show same behavior in water as they show in ammonia because water is more polar
- b)As we dilute the solution of alkali metal in ammonia, blue colour and paramagnetic nature is gone because dissociation of ammonia increases
- c)If we add d-block metal impurity in alkali metal in ammonia solution hydrogen gas is obtained but colour and magnetic nature of solution may or may not change.
- d)In concentrated solution of metal in ammonia metallic bonding between metal ion decreases which leads to diamagnetism
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Which of the following is incorrect statement?a)Alkali metal do not sh...
a) H2O →OH- + H+
NH3→NH2- +H+
Water being more polar than ammonia dissociates more and gives plenty amount of H+ and hence H2 gas is released as result. In ammonia sufficient amount of H+ is not obtained due to less polar nature (so less dissociation) hence H2 gas is not evolved and then ammoniation of electron happens
b) As we dilute further dissociation of ammonia increases (because degree of dissociation is inversely proportional to concentration) and we get more H+ and NH2- ion. H+ combines with ammoniated electron and H2 gas is evolved and paramagnetism is gone.
c) NH3→NH2- +H+
M →M+ +e-
M+ +xNH2-→[M (NH2)x] type of complex
On adding d block metal ion we see that metal ion combines with NH2- and forms metal complex. Complex formation leads to ammonia dissociation even more and as a result of ammonia dissociation more H+ is released and which combines with ammoniated electron and H2 gas is evolved. Now colour and magnetic nature may or may not change. But whatever it will be it will be due to this complex.
d) Metallic bonding increases at very high concentration M2 is formed.
Hence option (d) is correct.
NH3→NH2- +H+
Water being more polar than ammonia dissociates more and gives plenty amount of H+ and hence H2 gas is released as result. In ammonia sufficient amount of H+ is not obtained due to less polar nature (so less dissociation) hence H2 gas is not evolved and then ammoniation of electron happens
b) As we dilute further dissociation of ammonia increases (because degree of dissociation is inversely proportional to concentration) and we get more H+ and NH2- ion. H+ combines with ammoniated electron and H2 gas is evolved and paramagnetism is gone.
c) NH3→NH2- +H+
M →M+ +e-
M+ +xNH2-→[M (NH2)x] type of complex
On adding d block metal ion we see that metal ion combines with NH2- and forms metal complex. Complex formation leads to ammonia dissociation even more and as a result of ammonia dissociation more H+ is released and which combines with ammoniated electron and H2 gas is evolved. Now colour and magnetic nature may or may not change. But whatever it will be it will be due to this complex.
d) Metallic bonding increases at very high concentration M2 is formed.
Hence option (d) is correct.
Most Upvoted Answer
Which of the following is incorrect statement?a)Alkali metal do not sh...
Explanation:
Statement: In concentrated solution of metal in ammonia, metallic bonding between metal ion decreases which leads to diamagnetism.
Explanation:
Metallic bonding occurs between metal atoms in a metal lattice, where valence electrons are delocalized and form a "sea" of electrons that surround the metal cations. This bonding is responsible for the unique properties of metals such as high electrical and thermal conductivity, malleability, and ductility.
When a metal dissolves in liquid ammonia, the metallic bonding is disrupted and the metal cations are solvated by the ammonia molecules. The ammonia molecules coordinate with the metal cations, forming a complex ion.
In a concentrated solution of metal in ammonia, the metal cations and ammonia molecules are closely packed together. Due to the strong coordination between the metal cations and ammonia molecules, the metallic bonding between the metal ions is weakened. This weakening of the metallic bonding leads to a decrease in the delocalization of electrons and a decrease in the mobility of the electrons.
Effects:
The decrease in metallic bonding and decrease in electron delocalization result in the following effects:
1. Diamagnetism: Diamagnetism is the property of a substance to be weakly repelled by a magnetic field. In a concentrated solution of metal in ammonia, the decrease in metallic bonding reduces the presence of delocalized electrons, leading to a decrease in the paramagnetic behavior of the solution. As a result, the solution becomes diamagnetic.
2. Color change: The color of a solution is often associated with the presence of d-d transitions in transition metal ions. In a concentrated solution of metal in ammonia, the decrease in metallic bonding can disrupt the d-d transitions, leading to a loss of color in the solution.
Therefore, the incorrect statement is option 'D' which states that in a concentrated solution of metal in ammonia, the metallic bonding between metal ions decreases, leading to diamagnetism. In fact, the decrease in metallic bonding in concentrated solutions of metal in ammonia leads to paramagnetism, not diamagnetism.
Statement: In concentrated solution of metal in ammonia, metallic bonding between metal ion decreases which leads to diamagnetism.
Explanation:
Metallic bonding occurs between metal atoms in a metal lattice, where valence electrons are delocalized and form a "sea" of electrons that surround the metal cations. This bonding is responsible for the unique properties of metals such as high electrical and thermal conductivity, malleability, and ductility.
When a metal dissolves in liquid ammonia, the metallic bonding is disrupted and the metal cations are solvated by the ammonia molecules. The ammonia molecules coordinate with the metal cations, forming a complex ion.
In a concentrated solution of metal in ammonia, the metal cations and ammonia molecules are closely packed together. Due to the strong coordination between the metal cations and ammonia molecules, the metallic bonding between the metal ions is weakened. This weakening of the metallic bonding leads to a decrease in the delocalization of electrons and a decrease in the mobility of the electrons.
Effects:
The decrease in metallic bonding and decrease in electron delocalization result in the following effects:
1. Diamagnetism: Diamagnetism is the property of a substance to be weakly repelled by a magnetic field. In a concentrated solution of metal in ammonia, the decrease in metallic bonding reduces the presence of delocalized electrons, leading to a decrease in the paramagnetic behavior of the solution. As a result, the solution becomes diamagnetic.
2. Color change: The color of a solution is often associated with the presence of d-d transitions in transition metal ions. In a concentrated solution of metal in ammonia, the decrease in metallic bonding can disrupt the d-d transitions, leading to a loss of color in the solution.
Therefore, the incorrect statement is option 'D' which states that in a concentrated solution of metal in ammonia, the metallic bonding between metal ions decreases, leading to diamagnetism. In fact, the decrease in metallic bonding in concentrated solutions of metal in ammonia leads to paramagnetism, not diamagnetism.
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Which of the following is incorrect statement?a)Alkali metal do not show same behavior in water as they show in ammonia because water is more polarb)As we dilute the solution of alkali metal in ammonia, blue colour and paramagnetic nature is gone because dissociation of ammonia increasesc)If we add d-block metal impurity in alkali metal in ammonia solution hydrogen gas is obtained but colour and magnetic nature of solution may or may not change.d)In concentrated solution of metal in ammonia metallic bonding between metal ion decreases which leads to diamagnetismCorrect answer is option 'D'. Can you explain this answer?
Question Description
Which of the following is incorrect statement?a)Alkali metal do not show same behavior in water as they show in ammonia because water is more polarb)As we dilute the solution of alkali metal in ammonia, blue colour and paramagnetic nature is gone because dissociation of ammonia increasesc)If we add d-block metal impurity in alkali metal in ammonia solution hydrogen gas is obtained but colour and magnetic nature of solution may or may not change.d)In concentrated solution of metal in ammonia metallic bonding between metal ion decreases which leads to diamagnetismCorrect answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Which of the following is incorrect statement?a)Alkali metal do not show same behavior in water as they show in ammonia because water is more polarb)As we dilute the solution of alkali metal in ammonia, blue colour and paramagnetic nature is gone because dissociation of ammonia increasesc)If we add d-block metal impurity in alkali metal in ammonia solution hydrogen gas is obtained but colour and magnetic nature of solution may or may not change.d)In concentrated solution of metal in ammonia metallic bonding between metal ion decreases which leads to diamagnetismCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is incorrect statement?a)Alkali metal do not show same behavior in water as they show in ammonia because water is more polarb)As we dilute the solution of alkali metal in ammonia, blue colour and paramagnetic nature is gone because dissociation of ammonia increasesc)If we add d-block metal impurity in alkali metal in ammonia solution hydrogen gas is obtained but colour and magnetic nature of solution may or may not change.d)In concentrated solution of metal in ammonia metallic bonding between metal ion decreases which leads to diamagnetismCorrect answer is option 'D'. Can you explain this answer?.
Which of the following is incorrect statement?a)Alkali metal do not show same behavior in water as they show in ammonia because water is more polarb)As we dilute the solution of alkali metal in ammonia, blue colour and paramagnetic nature is gone because dissociation of ammonia increasesc)If we add d-block metal impurity in alkali metal in ammonia solution hydrogen gas is obtained but colour and magnetic nature of solution may or may not change.d)In concentrated solution of metal in ammonia metallic bonding between metal ion decreases which leads to diamagnetismCorrect answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Which of the following is incorrect statement?a)Alkali metal do not show same behavior in water as they show in ammonia because water is more polarb)As we dilute the solution of alkali metal in ammonia, blue colour and paramagnetic nature is gone because dissociation of ammonia increasesc)If we add d-block metal impurity in alkali metal in ammonia solution hydrogen gas is obtained but colour and magnetic nature of solution may or may not change.d)In concentrated solution of metal in ammonia metallic bonding between metal ion decreases which leads to diamagnetismCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is incorrect statement?a)Alkali metal do not show same behavior in water as they show in ammonia because water is more polarb)As we dilute the solution of alkali metal in ammonia, blue colour and paramagnetic nature is gone because dissociation of ammonia increasesc)If we add d-block metal impurity in alkali metal in ammonia solution hydrogen gas is obtained but colour and magnetic nature of solution may or may not change.d)In concentrated solution of metal in ammonia metallic bonding between metal ion decreases which leads to diamagnetismCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Which of the following is incorrect statement?a)Alkali metal do not show same behavior in water as they show in ammonia because water is more polarb)As we dilute the solution of alkali metal in ammonia, blue colour and paramagnetic nature is gone because dissociation of ammonia increasesc)If we add d-block metal impurity in alkali metal in ammonia solution hydrogen gas is obtained but colour and magnetic nature of solution may or may not change.d)In concentrated solution of metal in ammonia metallic bonding between metal ion decreases which leads to diamagnetismCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE.
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Here you can find the meaning of Which of the following is incorrect statement?a)Alkali metal do not show same behavior in water as they show in ammonia because water is more polarb)As we dilute the solution of alkali metal in ammonia, blue colour and paramagnetic nature is gone because dissociation of ammonia increasesc)If we add d-block metal impurity in alkali metal in ammonia solution hydrogen gas is obtained but colour and magnetic nature of solution may or may not change.d)In concentrated solution of metal in ammonia metallic bonding between metal ion decreases which leads to diamagnetismCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Which of the following is incorrect statement?a)Alkali metal do not show same behavior in water as they show in ammonia because water is more polarb)As we dilute the solution of alkali metal in ammonia, blue colour and paramagnetic nature is gone because dissociation of ammonia increasesc)If we add d-block metal impurity in alkali metal in ammonia solution hydrogen gas is obtained but colour and magnetic nature of solution may or may not change.d)In concentrated solution of metal in ammonia metallic bonding between metal ion decreases which leads to diamagnetismCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Which of the following is incorrect statement?a)Alkali metal do not show same behavior in water as they show in ammonia because water is more polarb)As we dilute the solution of alkali metal in ammonia, blue colour and paramagnetic nature is gone because dissociation of ammonia increasesc)If we add d-block metal impurity in alkali metal in ammonia solution hydrogen gas is obtained but colour and magnetic nature of solution may or may not change.d)In concentrated solution of metal in ammonia metallic bonding between metal ion decreases which leads to diamagnetismCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Which of the following is incorrect statement?a)Alkali metal do not show same behavior in water as they show in ammonia because water is more polarb)As we dilute the solution of alkali metal in ammonia, blue colour and paramagnetic nature is gone because dissociation of ammonia increasesc)If we add d-block metal impurity in alkali metal in ammonia solution hydrogen gas is obtained but colour and magnetic nature of solution may or may not change.d)In concentrated solution of metal in ammonia metallic bonding between metal ion decreases which leads to diamagnetismCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following is incorrect statement?a)Alkali metal do not show same behavior in water as they show in ammonia because water is more polarb)As we dilute the solution of alkali metal in ammonia, blue colour and paramagnetic nature is gone because dissociation of ammonia increasesc)If we add d-block metal impurity in alkali metal in ammonia solution hydrogen gas is obtained but colour and magnetic nature of solution may or may not change.d)In concentrated solution of metal in ammonia metallic bonding between metal ion decreases which leads to diamagnetismCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice JEE tests.
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