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Which one of the following ions is the most stable in aqueous solution? [2007] (At.No. Ti = 22, V = 23, Cr = 24, Mn = 25)
- a)V3+
- b)Ti3+
- c)Mn 3+
- d)Cr3+
Correct answer is option 'D'. Can you explain this answer?
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Which one of the following ions is the most stable in aqueous solution...
For chromium ion + 3oxidation state is most stable.
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Which one of the following ions is the most stable in aqueous solution...
Stability of ions in aqueous solution
When an ion is dissolved in water, it interacts with the water molecules through electrostatic forces. The stability of an ion in aqueous solution depends on the strength of these interactions and the size of the ion.
The smaller the ion, the more strongly it interacts with the water molecules, which increases its stability. The larger the ion, the weaker its interactions with water, which decreases its stability.
Therefore, the stability of ions in aqueous solution generally follows the trend:
Smaller ions > larger ions
Answer and explanation:
The correct answer is option D, Cr3.
The ions given are V3+, Ti3+, Cr3+, and Mn3+. Among these, Cr3+ is the smallest ion with an atomic number of 24. This means that it has a high effective nuclear charge, which attracts its electrons more strongly and makes it smaller than the other ions.
Therefore, Cr3+ has the strongest interactions with the water molecules and is the most stable ion in aqueous solution. This is because of the following reasons:
- Cr3+ is small in size and has a high effective nuclear charge.
- The high effective nuclear charge of Cr3+ attracts its electrons more strongly, making it more stable.
- The small size of Cr3+ allows it to interact more closely with the water molecules, increasing its stability.
Therefore, option D, Cr3+, is the most stable ion in aqueous solution among the given options.
When an ion is dissolved in water, it interacts with the water molecules through electrostatic forces. The stability of an ion in aqueous solution depends on the strength of these interactions and the size of the ion.
The smaller the ion, the more strongly it interacts with the water molecules, which increases its stability. The larger the ion, the weaker its interactions with water, which decreases its stability.
Therefore, the stability of ions in aqueous solution generally follows the trend:
Smaller ions > larger ions
Answer and explanation:
The correct answer is option D, Cr3.
The ions given are V3+, Ti3+, Cr3+, and Mn3+. Among these, Cr3+ is the smallest ion with an atomic number of 24. This means that it has a high effective nuclear charge, which attracts its electrons more strongly and makes it smaller than the other ions.
Therefore, Cr3+ has the strongest interactions with the water molecules and is the most stable ion in aqueous solution. This is because of the following reasons:
- Cr3+ is small in size and has a high effective nuclear charge.
- The high effective nuclear charge of Cr3+ attracts its electrons more strongly, making it more stable.
- The small size of Cr3+ allows it to interact more closely with the water molecules, increasing its stability.
Therefore, option D, Cr3+, is the most stable ion in aqueous solution among the given options.
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Which one of the following ions is the most stable in aqueous solution? [2007] (At.No. Ti = 22, V = 23, Cr = 24, Mn = 25)a)V3+b)Ti3+c)Mn 3+d)Cr3+Correct answer is option 'D'. Can you explain this answer?
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Which one of the following ions is the most stable in aqueous solution? [2007] (At.No. Ti = 22, V = 23, Cr = 24, Mn = 25)a)V3+b)Ti3+c)Mn 3+d)Cr3+Correct answer is option 'D'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Which one of the following ions is the most stable in aqueous solution? [2007] (At.No. Ti = 22, V = 23, Cr = 24, Mn = 25)a)V3+b)Ti3+c)Mn 3+d)Cr3+Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following ions is the most stable in aqueous solution? [2007] (At.No. Ti = 22, V = 23, Cr = 24, Mn = 25)a)V3+b)Ti3+c)Mn 3+d)Cr3+Correct answer is option 'D'. Can you explain this answer?.
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