In propounding the ‘Newlands’ Law of Octaves’, John Newlands derived the idea of octaves from where?

Correct option is B

Correct Answer: (B) Music
Explanation: John Newlands derived the idea of octaves from music. He observed that when elements were arranged in increasing order of their atomic masses, every eighth element had properties similar to the first, just like the repetition of notes in a musical octave.
Information Booster: According to NCERT Chemistry (Class 10), Newlands compared the periodic repetition of elements’ properties with the musical scale, where after seven notes, the eighth note repeats the first. This analogy led to the formulation of the Law of Octaves.
Additional Knowledge:
· (A) Ocean – No scientific or conceptual link with the periodic classification of elements.
· (C) Economy – Unrelated to chemical periodicity or Newlands’ work.
· (D) Thunder – A natural phenomenon with no connection to atomic properties or periodic trends.