Sarthaks Test
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Assertion: Dobereiner arranged the elements with similar properties into groups having three elements each; called as Dobereiner’s triads. 

Reason: The atomic mass of the middle element was roughly the average of the atomic masses of the other two elements.

a) Both A and R are true, and R is correct explanation of the assertion. 

b) Both A and R are true, but R is not the correct explanation of the assertion. 

c) A is true, but R is false. 

d) A is false, but R is true.

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1 Answer

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ago by (13.6k points)

a) Both A and R are true, and R is correct explanation of the assertion.

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