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Question

Assertion (A): Toxoids are used in vaccines.​
Reason (R): Toxoids are bacterial toxins which help in the formation of antibodies.​

A
Assertion(A) is false and reason(R) is false.​
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B
Assertion(A) is true and reason(R) is false.​
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C
Both assertion(A) and reason(R) are true and reason(R) is the correct explanation for assertion(A). ​
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D
Both assertion(A) and reason(R) are true, but reason(R) is not the correct explanation for assertion.​
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Solution

The correct option is C Both assertion(A) and reason(R) are true and reason(R) is the correct explanation for assertion(A). ​

Correct answer: (a) Both assertion(A) and reason(R) are true and reason(R) is the correct explanation for assertion(A). ​

Toxoids are used in vaccine preparations. For example, the toxoids of diphtheria and tetanus, which are often given in a combined vaccine.​
They are inactivated toxic substances extracted from bacterial cells, useful for the development of antibodies. ​
So, the assertion is true and the reason is the correct explanation of the assertion.​


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