Assertion : According to Mendeleev, periodic properties of elements is a function of their atomic number. Reason : Atomic number is equal to the number of protons.
- AAssertion is correct, reason is correct; reason is a correct explanation for assertion.
- BAssertion is correct, reason is correct; reason is not a correct explanation for assertion
- CAssertion is correct, reason is incorrect
- DAssertion is incorrect, reason is correct.
✓ Correct answer: D
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