Question

Select the incorrect statements from among the following.

1. (i) Newland arranged the elements in the order of increasing atomic masses and gave the law of Octaves.
2. (ii) Sodium is the eighth element after lithium.
3. iii) Calcium is the eighth element after Beryllium.
4. (iv) The law of Octaves was applicable only up to Magnesium, as after Magnesium every eighth element did not possess properties similar to that of the first.

• A. None of these
• B. iv only
• C. i, ii
• D. i, iv

Answer 1

Answer:

B. iv only

• Fourth statement is incorrect.

• 'Law of Octaves' and hence it is known as 'Newlands' Law of Octaves'

• It was found that the Law of Octaves was applicable only upto calcium, as after calcium every eighth element did not possess properties similar to that of the first.