Periodic Classification of Elements and Periodicity MCQ's

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Periodic Classification of Elements and Periodicity MCQ's MCQ's from chapter 1 chemistry Book 2. Read questions carefully and answer them all.

1. The The group number of element in periodic table indicates

A) Valency with respect to hydrogen
B) The atomicity
C) The number of electrons in the outer most shell
D) Number of shells

2. If we go from Li to F in the second period, there would be a decrease in

A) Atomic mass
B) Atomic radii
C) Ionization energy
D) electronegativity

3. Ionization energy of nitrogen is more than oxygen because

A) Nucleus has more attraction for electrons
B) Half filled p orbitals are more stable
C) Nitrogen atom is small
D) More penetration effect

4. Which pair of atomic numbers represents s block elements

A) 7,15
B) 6,12
C) 9,17
D) 3,12

5. Which of the following is the wrong statement

A) All the actinide elements are radioactive
B) Alkali and alkaline earth metals are s block elements
C) Chalcogens are halogens are p block elements
D) The first member of the lanthanide series is lanthanum

6. Elements in the same vertical group of the periodic table have generally the same

A) Atomic number
B) Electronic configuration
C) Atomic mass
D) Number of electrons in the outermost shell

7. Hydrogen behaves as an oxidizing agent in its reaction with

A) Chlorine
B) Potassium
C) Nitrogen
D) Sulphur

8. In the periodic classification of elements, the law of octaves was introduced by

A) Mendeleev
B) Newland
C) Dobereiner
D) Lother meyer

9. In the long form of periodic table all the non metals are placed in

A) S block
B) F block
C) P block
D) D block

10. Which of the following elements is most metallic

A) P
B) As
C) Sb
D) bi