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An organic compound which produces a bluish-green coloured flame on heating in the presence of copper is
- a)chlorobenzene
- b)benzaldehyde
- c)aniline
- d)benzoic acid
Correct answer is option 'A'. Can you explain this answer?
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An organic compound which produces a bluish-green coloured flame on h...
The presence of halogens is revealed by the coloured flame produced when halogen-containing compounds are placed in a flame.
A green-blue flame is formed when the halogen contained in the organic compound is chlorine e.g. C6H5CI.
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An organic compound which produces a bluish-green coloured flame on h...
Solution:
To identify the organic compound that produces a bluish-green colored flame on heating in the presence of copper, we need to consider the chemical properties and behavior of the given options.
Option A: Chlorobenzene
Chlorobenzene is an organic compound with the formula C6H5Cl. It is a colorless liquid that is immiscible with water. When heated in the presence of a copper catalyst, chlorobenzene can undergo a reaction known as the Gattermann reaction. This reaction involves the substitution of a hydrogen atom in the benzene ring with a chlorine atom. The reaction is accompanied by the formation of a bluish-green colored flame. Therefore, option A is the correct answer.
Option B: Benzaldehyde
Benzaldehyde is an organic compound with the formula C6H5CHO. It is a colorless liquid with a characteristic almond-like odor. When heated in the presence of copper, benzaldehyde does not produce a bluish-green colored flame. Therefore, option B is not the correct answer.
Option C: Aniline
Aniline is an organic compound with the formula C6H5NH2. It is a colorless to pale yellow liquid that is miscible with water. When heated in the presence of copper, aniline does not produce a bluish-green colored flame. Therefore, option C is not the correct answer.
Option D: Benzoic Acid
Benzoic acid is an organic compound with the formula C6H5COOH. It is a white crystalline solid that is soluble in water. When heated in the presence of copper, benzoic acid does not produce a bluish-green colored flame. Therefore, option D is not the correct answer.
Conclusion:
Among the given options, the organic compound that produces a bluish-green colored flame on heating in the presence of copper is option A, chlorobenzene.
To identify the organic compound that produces a bluish-green colored flame on heating in the presence of copper, we need to consider the chemical properties and behavior of the given options.
Option A: Chlorobenzene
Chlorobenzene is an organic compound with the formula C6H5Cl. It is a colorless liquid that is immiscible with water. When heated in the presence of a copper catalyst, chlorobenzene can undergo a reaction known as the Gattermann reaction. This reaction involves the substitution of a hydrogen atom in the benzene ring with a chlorine atom. The reaction is accompanied by the formation of a bluish-green colored flame. Therefore, option A is the correct answer.
Option B: Benzaldehyde
Benzaldehyde is an organic compound with the formula C6H5CHO. It is a colorless liquid with a characteristic almond-like odor. When heated in the presence of copper, benzaldehyde does not produce a bluish-green colored flame. Therefore, option B is not the correct answer.
Option C: Aniline
Aniline is an organic compound with the formula C6H5NH2. It is a colorless to pale yellow liquid that is miscible with water. When heated in the presence of copper, aniline does not produce a bluish-green colored flame. Therefore, option C is not the correct answer.
Option D: Benzoic Acid
Benzoic acid is an organic compound with the formula C6H5COOH. It is a white crystalline solid that is soluble in water. When heated in the presence of copper, benzoic acid does not produce a bluish-green colored flame. Therefore, option D is not the correct answer.
Conclusion:
Among the given options, the organic compound that produces a bluish-green colored flame on heating in the presence of copper is option A, chlorobenzene.
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An organic compound which produces a bluish-green coloured flame on heating in the presence of copper isa)chlorobenzeneb)benzaldehydec)anilined)benzoic acidCorrect answer is option 'A'. Can you explain this answer?
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