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Comprehension Type
This section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d)
Passage
Phosphorus was discovered by Brand (1669), Scheele isolated from bone ash and Lavoisier proved its elemental nature (1777). The principal minerals are phosphate rock, fluoroapatite and chloroapatite. Phosphorus is prepared by the direct reduction of phosphorite by carbon in the presence of silica. It exists in different allotropic forms such as yellow or white, red, a-black,f3-black, etc. White P is most reactive, poisonous, glows in dark and readily catches fire due to unstable discrete P4 molecules. Red P is inert, non-poisonous, does not glow etc., due to its polymeric structure. a-black, f3 -black allotropes are also chemically inert, do not ignite at normal temperature. It has layer structure like graphite and acts as conductor. 
 
Q.
which of the following statements is/are correct ?
  • a)
    Abundance in the earth’s crust P>N>As>Sb
  • b)
    N2 molecule has pπ - pπ bonding
  • c)
    Among the nitrogen halides, NF3 is least stable
  • d)
    None of the above
Correct answer is option 'A,B'. Can you explain this answer?
Verified Answer
Comprehension TypeThis section contains a passage describing theory, e...
 A molecule of N2 has the pπ-pπ bonding with each other respectively and the abundance in the earth's crest follows
P > N > As > Sb 
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Most Upvoted Answer
Comprehension TypeThis section contains a passage describing theory, e...
Correctness of Statements
The answer provided indicates that statements a and b are correct, while c is not. Let's break down each statement to understand their validity.
Statement a: Abundance in the earth’s crust P > N > As > Sb
- Phosphorus (P) is indeed more abundant than nitrogen (N), arsenic (As), and antimony (Sb) in the Earth's crust.
- This order reflects the general abundance of these elements, confirming that this statement is correct.
Statement b: N2 molecule has pπ - pπ bonding
- The N2 molecule consists of two nitrogen atoms connected by a triple bond, which includes one sigma bond and two pi bonds.
- The pi bonds in nitrogen arise from the overlap of p orbitals, affirming that N2 exhibits pπ - pπ bonding. Thus, this statement is also correct.
Statement c: Among the nitrogen halides, NF3 is least stable
- NF3 (Nitrogen trifluoride) is actually stable and has a relatively stable bond due to the strong N-F bond.
- In contrast, other nitrogen halides like NCl3 or NBr3 tend to be less stable, especially due to the presence of larger halogens which introduce instability. Therefore, this statement is incorrect.
Conclusion
- The correct answer is indeed "A, B" since both statements a and b have been verified as true, while statement c is false.
- Thus, understanding the properties and relative abundance of these elements helps clarify the reasoning behind the correctness of each statement.
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Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d)PassagePhosphorus was discovered by Brand (1669), Scheele isolated from bone ash and Lavoisier proved its elemental nature (1777). The principal minerals are phosphate rock, fluoroapatite and chloroapatite. Phosphorus is prepared by the direct reduction of phosphorite by carbon in the presence of silica. It exists in different allotropic forms such as yellow or white, red, a-black,f3-black, etc. White P is most reactive, poisonous, glows in dark and readily catches fire due to unstable discrete P4 molecules. Red P is inert, non-poisonous, does not glow etc., due to its polymeric structure. a-black, f3 -black allotropes are also chemically inert, do not ignite at normal temperature. It has layer structure like graphite and acts as conductor.Q.which of the following statements is/are correct ?a)Abundance in the earth’s crust P>N>As>Sbb)N2molecule has pπ -pπ bondingc)Among the nitrogen halides, NF3 is least stabled)None of the aboveCorrect answer is option 'A,B'. 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 Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d)PassagePhosphorus was discovered by Brand (1669), Scheele isolated from bone ash and Lavoisier proved its elemental nature (1777). The principal minerals are phosphate rock, fluoroapatite and chloroapatite. Phosphorus is prepared by the direct reduction of phosphorite by carbon in the presence of silica. It exists in different allotropic forms such as yellow or white, red, a-black,f3-black, etc. White P is most reactive, poisonous, glows in dark and readily catches fire due to unstable discrete P4 molecules. Red P is inert, non-poisonous, does not glow etc., due to its polymeric structure. a-black, f3 -black allotropes are also chemically inert, do not ignite at normal temperature. It has layer structure like graphite and acts as conductor.Q.which of the following statements is/are correct ?a)Abundance in the earth’s crust P>N>As>Sbb)N2molecule has pπ -pπ bondingc)Among the nitrogen halides, NF3 is least stabled)None of the aboveCorrect answer is option 'A,B'. 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 Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d)PassagePhosphorus was discovered by Brand (1669), Scheele isolated from bone ash and Lavoisier proved its elemental nature (1777). The principal minerals are phosphate rock, fluoroapatite and chloroapatite. Phosphorus is prepared by the direct reduction of phosphorite by carbon in the presence of silica. It exists in different allotropic forms such as yellow or white, red, a-black,f3-black, etc. White P is most reactive, poisonous, glows in dark and readily catches fire due to unstable discrete P4 molecules. Red P is inert, non-poisonous, does not glow etc., due to its polymeric structure. a-black, f3 -black allotropes are also chemically inert, do not ignite at normal temperature. It has layer structure like graphite and acts as conductor.Q.which of the following statements is/are correct ?a)Abundance in the earth’s crust P>N>As>Sbb)N2molecule has pπ -pπ bondingc)Among the nitrogen halides, NF3 is least stabled)None of the aboveCorrect answer is option 'A,B'. Can you explain this answer?.
Solutions for Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d)PassagePhosphorus was discovered by Brand (1669), Scheele isolated from bone ash and Lavoisier proved its elemental nature (1777). The principal minerals are phosphate rock, fluoroapatite and chloroapatite. Phosphorus is prepared by the direct reduction of phosphorite by carbon in the presence of silica. It exists in different allotropic forms such as yellow or white, red, a-black,f3-black, etc. White P is most reactive, poisonous, glows in dark and readily catches fire due to unstable discrete P4 molecules. Red P is inert, non-poisonous, does not glow etc., due to its polymeric structure. a-black, f3 -black allotropes are also chemically inert, do not ignite at normal temperature. It has layer structure like graphite and acts as conductor.Q.which of the following statements is/are correct ?a)Abundance in the earth’s crust P>N>As>Sbb)N2molecule has pπ -pπ bondingc)Among the nitrogen halides, NF3 is least stabled)None of the aboveCorrect answer is option 'A,B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d)PassagePhosphorus was discovered by Brand (1669), Scheele isolated from bone ash and Lavoisier proved its elemental nature (1777). The principal minerals are phosphate rock, fluoroapatite and chloroapatite. Phosphorus is prepared by the direct reduction of phosphorite by carbon in the presence of silica. It exists in different allotropic forms such as yellow or white, red, a-black,f3-black, etc. White P is most reactive, poisonous, glows in dark and readily catches fire due to unstable discrete P4 molecules. Red P is inert, non-poisonous, does not glow etc., due to its polymeric structure. a-black, f3 -black allotropes are also chemically inert, do not ignite at normal temperature. It has layer structure like graphite and acts as conductor.Q.which of the following statements is/are correct ?a)Abundance in the earth’s crust P>N>As>Sbb)N2molecule has pπ -pπ bondingc)Among the nitrogen halides, NF3 is least stabled)None of the aboveCorrect answer is option 'A,B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d)PassagePhosphorus was discovered by Brand (1669), Scheele isolated from bone ash and Lavoisier proved its elemental nature (1777). The principal minerals are phosphate rock, fluoroapatite and chloroapatite. Phosphorus is prepared by the direct reduction of phosphorite by carbon in the presence of silica. It exists in different allotropic forms such as yellow or white, red, a-black,f3-black, etc. White P is most reactive, poisonous, glows in dark and readily catches fire due to unstable discrete P4 molecules. Red P is inert, non-poisonous, does not glow etc., due to its polymeric structure. a-black, f3 -black allotropes are also chemically inert, do not ignite at normal temperature. It has layer structure like graphite and acts as conductor.Q.which of the following statements is/are correct ?a)Abundance in the earth’s crust P>N>As>Sbb)N2molecule has pπ -pπ bondingc)Among the nitrogen halides, NF3 is least stabled)None of the aboveCorrect answer is option 'A,B'. Can you explain this answer?, a detailed solution for Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d)PassagePhosphorus was discovered by Brand (1669), Scheele isolated from bone ash and Lavoisier proved its elemental nature (1777). The principal minerals are phosphate rock, fluoroapatite and chloroapatite. Phosphorus is prepared by the direct reduction of phosphorite by carbon in the presence of silica. It exists in different allotropic forms such as yellow or white, red, a-black,f3-black, etc. White P is most reactive, poisonous, glows in dark and readily catches fire due to unstable discrete P4 molecules. Red P is inert, non-poisonous, does not glow etc., due to its polymeric structure. a-black, f3 -black allotropes are also chemically inert, do not ignite at normal temperature. It has layer structure like graphite and acts as conductor.Q.which of the following statements is/are correct ?a)Abundance in the earth’s crust P>N>As>Sbb)N2molecule has pπ -pπ bondingc)Among the nitrogen halides, NF3 is least stabled)None of the aboveCorrect answer is option 'A,B'. Can you explain this answer? has been provided alongside types of Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d)PassagePhosphorus was discovered by Brand (1669), Scheele isolated from bone ash and Lavoisier proved its elemental nature (1777). The principal minerals are phosphate rock, fluoroapatite and chloroapatite. Phosphorus is prepared by the direct reduction of phosphorite by carbon in the presence of silica. It exists in different allotropic forms such as yellow or white, red, a-black,f3-black, etc. White P is most reactive, poisonous, glows in dark and readily catches fire due to unstable discrete P4 molecules. Red P is inert, non-poisonous, does not glow etc., due to its polymeric structure. a-black, f3 -black allotropes are also chemically inert, do not ignite at normal temperature. It has layer structure like graphite and acts as conductor.Q.which of the following statements is/are correct ?a)Abundance in the earth’s crust P>N>As>Sbb)N2molecule has pπ -pπ bondingc)Among the nitrogen halides, NF3 is least stabled)None of the aboveCorrect answer is option 'A,B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Comprehension TypeThis section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d)PassagePhosphorus was discovered by Brand (1669), Scheele isolated from bone ash and Lavoisier proved its elemental nature (1777). The principal minerals are phosphate rock, fluoroapatite and chloroapatite. Phosphorus is prepared by the direct reduction of phosphorite by carbon in the presence of silica. It exists in different allotropic forms such as yellow or white, red, a-black,f3-black, etc. White P is most reactive, poisonous, glows in dark and readily catches fire due to unstable discrete P4 molecules. Red P is inert, non-poisonous, does not glow etc., due to its polymeric structure. a-black, f3 -black allotropes are also chemically inert, do not ignite at normal temperature. It has layer structure like graphite and acts as conductor.Q.which of the following statements is/are correct ?a)Abundance in the earth’s crust P>N>As>Sbb)N2molecule has pπ -pπ bondingc)Among the nitrogen halides, NF3 is least stabled)None of the aboveCorrect answer is option 'A,B'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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