Question
State Dobereiner’s Law of Triads.
✓
Answer
In each triad, when the elements are placed according to the increasing order of their atomic masses, the atomic mass of the middle element in each triad was approximately equal to the mean of the atomic masses of the other two elements.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Define total internal reflection of light.
Give two uses of a convex mirror. Explain why you would choose convex mirror for these uses.
Explain the following reaction with their balanced chemical equation.
Ammonia gas reacts with hydrogen chloride.
Ammonia gas reacts with hydrogen chloride.
Define : Calcination
Explain why, the core of an electromagnet should be of soft iron and not of steel.
Complete the following conceptual picture.
Plant parts show two types of movements, one dependent on growth and the other independent of growth. Give one example of the movement in plant parts:
- Which depends on growth.
- Which does not depend on growth.
Write notes. : Space Exploration
Define the unit of resistance (or Define the unit “ohm”).
- How can you bend light away from the normal?
- How must light travel out of a substance if it is not going to be refracted?