Class 11

3. Classification of elements and periodicity in properties question bank (Chemistry)

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Q1.

Mendeleev periodic table is based on:

(A)
Atomic number
(B)
Increasing order of number of protons
(C)
Electronic configuration
(D)
None of the above
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Q2.

Which of the following sets of elements follows Newlands' octave rule?

(A)
Be, Mg, Ca
(B)
Na, K, Rb
(C)
F, Cl, Br
(D)
B, Al, Ga
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