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CBSE Notes 2011-2012

Assertion (A): According to Mendeleev, periodic properties of elements is a function of their atomic...

Multiple choice question

Assertion (A): According to Mendeleev, periodic properties
of elements is a function of their atomic masses
Reason (R): Atomic number is equal to number of protons

unknown

Both "A and "R" are true and R' is correct explanation of 'A"

unknown

Both "A' and "R' are true but "R' is not correct
explanation of 'A

unknown

'A is false but 'R' is true

unknown

A and 'R" are false