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Class XI Chemistry Classification of Elements 5

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Question 1

Two elements, X and Y, have atomic numbers 33 and 17, respectively. The molecular formula of a stable compound formed between them is

Question 2

The electronic configuration which obeys Hund’s rule for the ground state of carbon atom is

Question 3

The electronic configuration of an element with the largest difference between the 1st and 2nd ionization energies is

Question 4

The group having isoelectronic species is:

Question 5

The element which readily forms an ionic bond has the electronic configuration

Question 6

Which pair of elements has same chemical properties?

Question 7

Which of the following is correct comparison of the stability of the molecules?

Question 8

Generally, the first ionization energy increases along a period. But there are some exceptions. The one which is NOT an exception is

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Jul 29JEE & BITSAT