Easy MCQ +4 / -1 PYQ · JEE Mains 2025

Given below are two statements :

Statement I : According to the Law of Octaves, the elements were arranged in the increasing order of their atomic number.

Statement II : Meyer observed a periodically repeated pattern upon plotting physical properties of certain elements against their respective atomic numbers.

In the light of the above statements, choose the correct answer from the options given below :

  1. A <p>Both <b>Statement I</b> and <b>Statement II</b> are false</p> Correct answer
  2. B <p><b>Statement I</b> is false but <b>Statement II</b> is true</p>
  3. C <p><b>Statement I</b> is true but <b>Statement II</b> is false</p>
  4. D <p>Both <b>Statement I</b> and <b>Statement II</b> are true</p>

Solution

<p>Law of octaves was arranged in the increasing order of their atomic weight.</p> <p>Lothar Meyer plotted the physical properties such as atomic volume, melting point and boiling point against atomic weight.</p>

About this question

Subject: Chemistry · Chapter: Periodic Table and Periodicity · Topic: Periodic Trends

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