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Assertion (A): Graphite is used as a dry lubricant in machines which run at high temperatures
Reason (R): The layers of graphite slip one over the other when pressure is applied
The correct option among the following is
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Reason (R): The layers of graphite slip one over the other when pressure is applied
The correct option among the following is
Solution:
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The correct answer is:
(A) and (R) are true. (R) is the correct explanation of
(A)
(A)
Graphite is an allo rope of carbon that is soft and slippery due to which it is used as a lubricant.
Thus, Assertion (A) is true.
The reason for soft nature of graphite is the hexagonal layers of carbon atoms that slip over one another at high pressures.
Thus, Reason (R) is true and it also explains the statement in assertion (A).
Thus, Assertion (A) is true.
The reason for soft nature of graphite is the hexagonal layers of carbon atoms that slip over one another at high pressures.
Thus, Reason (R) is true and it also explains the statement in assertion (A).
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