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One or More than One Options Correct Type
This section contains 5 multiple type questions. Each question has 4 choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.

  • a)
  • b)
  • c)
  • d)
Correct answer is 'A,C'. Can you explain this answer?
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One or More than One Options Correct TypeThis section contains 5 multi...
(a.c) Being goad conductor of neat and elecnicky, black phosphorus is a most stabte allotrope of phosphorus 
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One or More than One Options Correct TypeThis section contains 5 multi...
Black phosphorus is the most stable allotrope of phosphorus... Also it is a good conducter of electricity n heat...
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One or More than One Options Correct TypeThis section contains 5 multi...
Black phosphorus:

Black phosphorus is one of the allotropes of phosphorus, which means it is a different form of the same element. It has several unique properties and applications. Let's analyze each statement regarding black phosphorus:

a) Most stable allotrope of phosphorus:
- This statement is correct. Black phosphorus is the most stable form of phosphorus at room temperature and pressure. It is a layered material composed of stacked phosphorus atoms held together by weak van der Waals forces. These layers are connected by strong covalent bonds, giving black phosphorus its stability.

b) Used in making safety matches:
- This statement is incorrect. Black phosphorus is not used in making safety matches. Safety matches are typically made using red phosphorus, which is a more reactive and flammable form of phosphorus.

c) Good conductor of heat and electricity:
- This statement is correct. Black phosphorus is a good conductor of both heat and electricity. It has a high thermal conductivity, allowing it to efficiently transfer heat. It also exhibits semiconducting behavior, meaning it can conduct electricity under certain conditions.

d) It exists as P4 units:
- This statement is incorrect. Black phosphorus does not exist as P4 units. Instead, it consists of layers of phosphorus atoms arranged in a hexagonal lattice structure. Each layer is made up of individual phosphorus atoms bonded together.

Therefore, the correct statements regarding black phosphorus are:
- It is the most stable allotrope of phosphorus.
- It is a good conductor of heat and electricity.

These properties make black phosphorus a promising material for various electronic and optoelectronic applications, such as transistors, photodetectors, and energy storage devices. Its unique layered structure and conductivity properties contribute to its potential use in these fields.
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Solutions for One or More than One Options Correct TypeThis section contains 5 multiple type questions. Each question has 4 choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct. a)b)c)d)Correct answer is 'A,C'. 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.
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