Assertion :Isoelectric point is pH at which colloidal can move towards either of an electrode. Reason: At isoelectric point, colloidal particles become electrically neutral.
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion Isoelectric point (pI) is the pH at which a particular molecule or surface carries no net electrical charge. At this point, the molecule is neutral and can move towards any electrode.