Consider the below statements and identify the correct answer.
Statement I: Law of Octaves was applicable only up to calcium.
Statement II: After calcium, every eighth element did not possess properties similar to that of the first.

Correct option is A

• The correct answer is (A) Both Statement I and Statement II are true, and Statement II is the correct explanation of Statement I.
• Statement I: Law of Octaves was applicable only up to calcium. This is true because the Law of Octaves, proposed by John Newlands, observed that every eighth element showed similar properties. However, this pattern was valid only for elements up to calcium (Z = 20). Beyond calcium, the periodic properties did not align with this rule.
• Statement II: After calcium, every eighth element did not possess properties similar to that of the first. This is also true, as the arrangement of elements beyond calcium did not follow the periodic pattern of the Law of Octaves due to the inclusion of transition elements, which disrupted the pattern.