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When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.
Identify B and D which are oxides of:
- a)B – Fe , D – Al
- b)B – Mg , D – Al
- c)B – Al D - Cu
- d)B – Al D – Fe
Correct answer is option 'A'. Can you explain this answer?
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When a silvery grey powder of a solid (A) is mixed with a powder of s...
Identifying B and D which are oxides:
The question states that when a silvery grey powder of a solid (A) is mixed with a powder of solid (B), no reaction occurs. However, when the mixture is ignited and lighted using magnesium ribbon, a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust.
Reaction and Products:
Based on the given information, let's analyze the reaction and products formed:
1. No reaction occurs when (A) is mixed with (B).
2. When the mixture is ignited and lighted using magnesium ribbon, a reaction occurs.
3. The reaction produces a large amount of heat.
4. The product (C) settles down as liquid metal.
5. The solid product (D) floats on the liquid (C).
6. (C) in solid form reacts with moisture to form rust.
Identifying B and D:
From the given options, let's analyze each possibility:
a) B – Fe, D – Al:
If (B) is an oxide of iron (Fe), it would react with (A) to produce iron oxide. However, the question states that no reaction occurs when (A) is mixed with (B), so this option is not correct.
b) B – Mg, D – Al:
If (B) is an oxide of magnesium (Mg), it would react with (A) to produce magnesium oxide. However, the question states that no reaction occurs when (A) is mixed with (B), so this option is not correct.
c) B – Al, D – Cu:
If (B) is an oxide of aluminum (Al), it would not react with (A) to form a reaction. Therefore, this option is not correct.
d) B – Al, D – Fe:
If (B) is an oxide of aluminum (Al), it would not react with (A) to form a reaction. Therefore, this option is not correct.
Correct Answer:
Based on the analysis, the correct answer is option 'A':
B – Fe (oxide of iron)
D – Al (solid product)
Conclusion:
The correct answer to the question is option 'A', where B is iron oxide (Fe) and D is aluminum (Al).
The question states that when a silvery grey powder of a solid (A) is mixed with a powder of solid (B), no reaction occurs. However, when the mixture is ignited and lighted using magnesium ribbon, a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust.
Reaction and Products:
Based on the given information, let's analyze the reaction and products formed:
1. No reaction occurs when (A) is mixed with (B).
2. When the mixture is ignited and lighted using magnesium ribbon, a reaction occurs.
3. The reaction produces a large amount of heat.
4. The product (C) settles down as liquid metal.
5. The solid product (D) floats on the liquid (C).
6. (C) in solid form reacts with moisture to form rust.
Identifying B and D:
From the given options, let's analyze each possibility:
a) B – Fe, D – Al:
If (B) is an oxide of iron (Fe), it would react with (A) to produce iron oxide. However, the question states that no reaction occurs when (A) is mixed with (B), so this option is not correct.
b) B – Mg, D – Al:
If (B) is an oxide of magnesium (Mg), it would react with (A) to produce magnesium oxide. However, the question states that no reaction occurs when (A) is mixed with (B), so this option is not correct.
c) B – Al, D – Cu:
If (B) is an oxide of aluminum (Al), it would not react with (A) to form a reaction. Therefore, this option is not correct.
d) B – Al, D – Fe:
If (B) is an oxide of aluminum (Al), it would not react with (A) to form a reaction. Therefore, this option is not correct.
Correct Answer:
Based on the analysis, the correct answer is option 'A':
B – Fe (oxide of iron)
D – Al (solid product)
Conclusion:
The correct answer to the question is option 'A', where B is iron oxide (Fe) and D is aluminum (Al).
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When a silvery grey powder of a solid (A) is mixed with a powder of s...
B = oxide of iron D – oxide of Al
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When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.Identify B and D which are oxides of:a)B – Fe , D – Alb)B – Mg , D – Alc)B – Al D - Cud)B – Al D – FeCorrect answer is option 'A'. Can you explain this answer?
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When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.Identify B and D which are oxides of:a)B – Fe , D – Alb)B – Mg , D – Alc)B – Al D - Cud)B – Al D – FeCorrect answer is option 'A'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.Identify B and D which are oxides of:a)B – Fe , D – Alb)B – Mg , D – Alc)B – Al D - Cud)B – Al D – FeCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.Identify B and D which are oxides of:a)B – Fe , D – Alb)B – Mg , D – Alc)B – Al D - Cud)B – Al D – FeCorrect answer is option 'A'. Can you explain this answer?.
When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.Identify B and D which are oxides of:a)B – Fe , D – Alb)B – Mg , D – Alc)B – Al D - Cud)B – Al D – FeCorrect answer is option 'A'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.Identify B and D which are oxides of:a)B – Fe , D – Alb)B – Mg , D – Alc)B – Al D - Cud)B – Al D – FeCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.Identify B and D which are oxides of:a)B – Fe , D – Alb)B – Mg , D – Alc)B – Al D - Cud)B – Al D – FeCorrect answer is option 'A'. Can you explain this answer?.
Solutions for When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.Identify B and D which are oxides of:a)B – Fe , D – Alb)B – Mg , D – Alc)B – Al D - Cud)B – Al D – FeCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10.
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Here you can find the meaning of When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.Identify B and D which are oxides of:a)B – Fe , D – Alb)B – Mg , D – Alc)B – Al D - Cud)B – Al D – FeCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.Identify B and D which are oxides of:a)B – Fe , D – Alb)B – Mg , D – Alc)B – Al D - Cud)B – Al D – FeCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.Identify B and D which are oxides of:a)B – Fe , D – Alb)B – Mg , D – Alc)B – Al D - Cud)B – Al D – FeCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.Identify B and D which are oxides of:a)B – Fe , D – Alb)B – Mg , D – Alc)B – Al D - Cud)B – Al D – FeCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.Identify B and D which are oxides of:a)B – Fe , D – Alb)B – Mg , D – Alc)B – Al D - Cud)B – Al D – FeCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 10 tests.
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