Assertion :Knee joint is hinge joint. Reason: Femur, patella and fibula are associated with knee joint.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
Joints are points of contact between bones, or between bones and cartilages.
Hinge joints are formed between two or more bones where the bones can only move along one axis to flex or extend. The knee joint is a hinge joint.
Femur, patella, and fibula are associated with the knee joint because the knee joins the thigh with the leg and consists of two joints one between the femur and tibia (tibiofemoral joint) and one between the femur and patella (patellofemoral joint).
So, the correct answer is 'Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion'.

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Choose the correct option.

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
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(c) Assertion is correct, but reason is incorrect
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