OMTEX CLASSES: State Dobereiner’s Triads giving one example.

State Dobereiner’s Triads giving one example.

Ans. Dobereiner arranged chemically similar elements in the increasing order of their atomic weights in a group of three which is known as “Dobereiner’s triads”.

In a Triad, atomic mass of the middle element is approximately equal to the mean of atomic masses of other two elements in that triad.

Examples: (i) Lithium, Sodium, Potassium.
(ii) Calcium, Strontium, Barium.

(iii) Chlorine, Bromine, Iodine.

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CHAPTERS COVERED
1. LINEAR EQUATIONS IN TWO VARIABLES
2. QUADRATIC EQUATIONS
3. ARITHMETIC PROGRESSION
4. FINANCIAL PLANNING
5. PROBABILITY
6. STATISTICS

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VIDEO LECTURES OF (MATHS I) SSC NEW SYLLABUS.



Linear Equations in Two Variables



Quadratic Equation



Arithmetic Progression



Financial Planning



Probability



Statistics