Question

Which of the following statements is correct?

• A. Law of octaves worked quite well for heavier elements but failed for lighter elements.
• B. Law of octaves failed for both lighter elements and heavier elements.
• C. Law of octaves worked quite well for lighter elements but failed for heavier elements.
• D. Law of octaves was first given by Mendeleev.

Answer 1

The correct option is C

Law of octaves worked quite well for lighter elements but failed for heavier elements.

Newlands noticed that every eighth element exhibits similar properties as compared to the first element. He called this observation as the ‘Law of Octaves’ better known as ‘Newlands' Law of Octaves’. Law of octaves worked quite well for lighter elements but failed with heavier elements. This is one of the demerits of Newlands' law of octaves.