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Which of the following statements is incorrect ?
- a)Pure sodium metal dissolves in liquid ammonia to give blue solution.
- b)NaOH reacts with glass to give sodium silicate
- c)Aluminium reacts with excess NaOH to give Al(OH)3
- d)NaHCO3 on heating gives Na2CO3
Correct answer is option 'C'. Can you explain this answer?
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Which of the following statements is incorrect ?a)Pure sodium metal di...
Pure sodium metal dissolves in liquid ammonia to give blue solution.
This statement is correct. When pure sodium metal is dissolved in liquid ammonia, it forms a blue solution due to the formation of solvated electrons. The solvated electrons are responsible for the blue color of the solution.
NaOH reacts with glass to give sodium silicate.
This statement is correct. Sodium hydroxide (NaOH) reacts with glass, which is primarily composed of silicon dioxide (SiO2), to form sodium silicate (Na2SiO3). This reaction is commonly known as the glass corrosion reaction.
Aluminium reacts with excess NaOH to give Al(OH)3.
This statement is incorrect. Aluminium (Al) does react with sodium hydroxide (NaOH), but it does not form Al(OH)3. Instead, it forms sodium aluminate (NaAlO2) in the presence of excess NaOH. The reaction can be represented as follows:
2Al + 2NaOH + 6H2O → 2NaAlO2 + 3H2
NaHCO3 on heating gives Na2CO3.
This statement is correct. Sodium bicarbonate (NaHCO3), commonly known as baking soda, decomposes when heated to produce sodium carbonate (Na2CO3), carbon dioxide (CO2), and water (H2O). The reaction can be represented as follows:
2NaHCO3 → Na2CO3 + CO2 + H2O
In summary, the incorrect statement is option C, which states that aluminium reacts with excess NaOH to give Al(OH)3. The correct reaction is the formation of sodium aluminate (NaAlO2) in the presence of excess NaOH.
This statement is correct. When pure sodium metal is dissolved in liquid ammonia, it forms a blue solution due to the formation of solvated electrons. The solvated electrons are responsible for the blue color of the solution.
NaOH reacts with glass to give sodium silicate.
This statement is correct. Sodium hydroxide (NaOH) reacts with glass, which is primarily composed of silicon dioxide (SiO2), to form sodium silicate (Na2SiO3). This reaction is commonly known as the glass corrosion reaction.
Aluminium reacts with excess NaOH to give Al(OH)3.
This statement is incorrect. Aluminium (Al) does react with sodium hydroxide (NaOH), but it does not form Al(OH)3. Instead, it forms sodium aluminate (NaAlO2) in the presence of excess NaOH. The reaction can be represented as follows:
2Al + 2NaOH + 6H2O → 2NaAlO2 + 3H2
NaHCO3 on heating gives Na2CO3.
This statement is correct. Sodium bicarbonate (NaHCO3), commonly known as baking soda, decomposes when heated to produce sodium carbonate (Na2CO3), carbon dioxide (CO2), and water (H2O). The reaction can be represented as follows:
2NaHCO3 → Na2CO3 + CO2 + H2O
In summary, the incorrect statement is option C, which states that aluminium reacts with excess NaOH to give Al(OH)3. The correct reaction is the formation of sodium aluminate (NaAlO2) in the presence of excess NaOH.
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Community Answer
Which of the following statements is incorrect ?a)Pure sodium metal di...
Because it will form sodium aluminate .
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Which of the following statements is incorrect ?a)Pure sodium metal dissolves in liquid ammonia to give blue solution.b)NaOH reacts with glass to give sodium silicatec)Aluminium reacts with excess NaOH to give Al(OH)3d)NaHCO3 on heating gives Na2CO3Correct answer is option 'C'. Can you explain this answer?
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Which of the following statements is incorrect ?a)Pure sodium metal dissolves in liquid ammonia to give blue solution.b)NaOH reacts with glass to give sodium silicatec)Aluminium reacts with excess NaOH to give Al(OH)3d)NaHCO3 on heating gives Na2CO3Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statements is incorrect ?a)Pure sodium metal dissolves in liquid ammonia to give blue solution.b)NaOH reacts with glass to give sodium silicatec)Aluminium reacts with excess NaOH to give Al(OH)3d)NaHCO3 on heating gives Na2CO3Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is incorrect ?a)Pure sodium metal dissolves in liquid ammonia to give blue solution.b)NaOH reacts with glass to give sodium silicatec)Aluminium reacts with excess NaOH to give Al(OH)3d)NaHCO3 on heating gives Na2CO3Correct answer is option 'C'. Can you explain this answer?.
Which of the following statements is incorrect ?a)Pure sodium metal dissolves in liquid ammonia to give blue solution.b)NaOH reacts with glass to give sodium silicatec)Aluminium reacts with excess NaOH to give Al(OH)3d)NaHCO3 on heating gives Na2CO3Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statements is incorrect ?a)Pure sodium metal dissolves in liquid ammonia to give blue solution.b)NaOH reacts with glass to give sodium silicatec)Aluminium reacts with excess NaOH to give Al(OH)3d)NaHCO3 on heating gives Na2CO3Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is incorrect ?a)Pure sodium metal dissolves in liquid ammonia to give blue solution.b)NaOH reacts with glass to give sodium silicatec)Aluminium reacts with excess NaOH to give Al(OH)3d)NaHCO3 on heating gives Na2CO3Correct answer is option 'C'. Can you explain this answer?.
Solutions for Which of the following statements is incorrect ?a)Pure sodium metal dissolves in liquid ammonia to give blue solution.b)NaOH reacts with glass to give sodium silicatec)Aluminium reacts with excess NaOH to give Al(OH)3d)NaHCO3 on heating gives Na2CO3Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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Which of the following statements is incorrect ?a)Pure sodium metal dissolves in liquid ammonia to give blue solution.b)NaOH reacts with glass to give sodium silicatec)Aluminium reacts with excess NaOH to give Al(OH)3d)NaHCO3 on heating gives Na2CO3Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Which of the following statements is incorrect ?a)Pure sodium metal dissolves in liquid ammonia to give blue solution.b)NaOH reacts with glass to give sodium silicatec)Aluminium reacts with excess NaOH to give Al(OH)3d)NaHCO3 on heating gives Na2CO3Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Which of the following statements is incorrect ?a)Pure sodium metal dissolves in liquid ammonia to give blue solution.b)NaOH reacts with glass to give sodium silicatec)Aluminium reacts with excess NaOH to give Al(OH)3d)NaHCO3 on heating gives Na2CO3Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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