Select the correct option regarding the assertion and reason provided below: Assertion (A): Dobereiner's triads were an early attempt to classify elements based on their chemical properties and atomic masses. Reason (R): In all identified triads of elements, the atomic mass of the middle element is exactly equal to the arithmetic mean of the atomic masses of the other two elements.

Question

Chemistry · Periodic Classification of Elements

Verified Solution4 OptionsUpdated: October 2026👁️1 View

Share:

Correct answer

(A) is true, but (R) is false

Save this question and verified answer as a clean study sheet with live clickable link.

👥

Challenge your peer aspirants on WhatsApp or Telegram to solve this question!

Online Test Series

Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.

Chapter Practice

Want more practice questions on Periodic Classification of Elements?

Solve complete topic-wise tests with detailed solutions on GkGet.

Recommended practice questions in Chemistry · Periodic Classification of Elements

Which movement aimed to promote Khadi, a hand-spun and handwoven cloth native to India?

Who were prominent leaders associated with the initial phase of the Telangana Rebellion (1946-1951) against the Nizam's rule and feudal landlords?

What was the immediate trigger for the Revolt of 1857?

Answer 1

Both (A) and (R) are true, and (R) is the correct explanation of (A)

Answer 2

(A) is true, but (R) is false

Answer 3

(A) is false, but (R) is true

Answer 4

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

Related Practice Questions