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Phosphine is not obtained by which of the following reaction?
- a)White P is heated with NaOH.
- b)Red P is heated with NaOH.
- c)Ca3P2 reacts with water.
- d)Both (a) and (c).
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Phosphine is not obtained by which of the following reaction?a)White P...
Red P does not react with NaOH to give PH3.
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Phosphine is not obtained by which of the following reaction?a)White P...
Phosphine is a colourless, flammable gas with a pungent smell. It is a compound consisting of phosphorus and hydrogen. It is commonly used as a fumigant and is also used in the semiconductor industry.
Obtaining Phosphine
Phosphine can be obtained through various reactions. Let's look at the reactions mentioned in the question and identify which one does not lead to the formation of phosphine.
a) White P is heated with NaOH: This reaction leads to the formation of phosphine gas. The reaction can be represented as follows:
3NaOH + P4 → PH3 + 3NaH2PO2
b) Red P is heated with NaOH: This reaction does not lead to the formation of phosphine gas. This is because red phosphorus is a stable form of phosphorus and does not react as easily as white phosphorus. The reaction that takes place is:
2NaOH + P → Na2HPO3 + H2
c) Ca3P2 reacts with water: This reaction leads to the formation of phosphine gas. The reaction can be represented as follows:
Ca3P2 + 6H2O → 3Ca(OH)2 + 2PH3
d) Both (a) and (c): As mentioned earlier, option (a) leads to the formation of phosphine gas. Option (c) also leads to the formation of phosphine gas.
Therefore, the correct answer is option (b) - Red P is heated with NaOH. This reaction does not lead to the formation of phosphine gas.
In conclusion, phosphine can be obtained through various reactions, but not all reactions lead to its formation.
Obtaining Phosphine
Phosphine can be obtained through various reactions. Let's look at the reactions mentioned in the question and identify which one does not lead to the formation of phosphine.
a) White P is heated with NaOH: This reaction leads to the formation of phosphine gas. The reaction can be represented as follows:
3NaOH + P4 → PH3 + 3NaH2PO2
b) Red P is heated with NaOH: This reaction does not lead to the formation of phosphine gas. This is because red phosphorus is a stable form of phosphorus and does not react as easily as white phosphorus. The reaction that takes place is:
2NaOH + P → Na2HPO3 + H2
c) Ca3P2 reacts with water: This reaction leads to the formation of phosphine gas. The reaction can be represented as follows:
Ca3P2 + 6H2O → 3Ca(OH)2 + 2PH3
d) Both (a) and (c): As mentioned earlier, option (a) leads to the formation of phosphine gas. Option (c) also leads to the formation of phosphine gas.
Therefore, the correct answer is option (b) - Red P is heated with NaOH. This reaction does not lead to the formation of phosphine gas.
In conclusion, phosphine can be obtained through various reactions, but not all reactions lead to its formation.
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Phosphine is not obtained by which of the following reaction?a)White P is heated with NaOH.b)Red P is heated with NaOH.c)Ca3P2 reacts with water.d)Both (a) and (c).Correct answer is option 'B'. Can you explain this answer?
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Phosphine is not obtained by which of the following reaction?a)White P is heated with NaOH.b)Red P is heated with NaOH.c)Ca3P2 reacts with water.d)Both (a) and (c).Correct answer is option 'B'. 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 Phosphine is not obtained by which of the following reaction?a)White P is heated with NaOH.b)Red P is heated with NaOH.c)Ca3P2 reacts with water.d)Both (a) and (c).Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Phosphine is not obtained by which of the following reaction?a)White P is heated with NaOH.b)Red P is heated with NaOH.c)Ca3P2 reacts with water.d)Both (a) and (c).Correct answer is option 'B'. Can you explain this answer?.
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