ECAT Pre Engineering Chemistry Chapter 12 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 12 Periodic Classification of Elements and Periodicity

Try The MCQ's Test For ECAT Chemistry Chapter 12 Periodic Classification of Elements and Periodicity

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ECAT Chemistry Chapter 12 Periodic Classification of Elements and Periodicity

00:00
Question # 1

Which group elements are the least metallic in nature?

Question # 2

Dobereiner gave his law in the year:

Question # 3

E.N. Value of fluorine is:

Question # 4

Oxidation state of boron, aluminium and gallium is:

Question # 5

Law of octaves was given by:

Question # 6

Law of triads was given by:

Question # 7

Hydrides are:

Question # 8

Dobriener's was a scientist:

Question # 9

The periodic function of properties of elements is their atomic number

Question # 10

Scientist(s) made contributions in the field designing a periodic table

Question # 11

Periodic law was given by:

Question # 12

Sodium belongs to block of periodic table:

Question # 13

First of all, idea of groups and periods was introduced by:

Question # 14

All facts of chemistry must be in simple logical patterns because chemistry is a subject:

Question # 15

Mendeleev gave his periodic law in the year:

Question # 16

Mark the correct statement:

Question # 17

Mosley gave his periodic law in the year:

Question # 18

Newland said, every eight element repeats properties of element:

Question # 19

Properties of metal are:

Question # 20

Newland's gave law:

Question # 21

Modern Periodic table is based upon periodic function:

Question # 22

Newland gave his law in the year:

Question # 23

There were seven groups in periodic table proposed by:

Question # 24

the element not known till Mandleev tabulated his periodic table:

Question # 25

Hydration energy depends upon:

Question # 26

Electron affinity value from higher to heavier element:

Question # 27

Period Number 6 contains elements in it:

Question # 28

Newland's was scientist:

Question # 29

Oxidation state of an element in free state is:

Question # 30

Ionization energy of sodium is (Kj/mol)

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ECAT Chemistry Chapter 12 Important MCQ's

Sr.# Question Answer
1 Mendeleev gave his periodic law in the year:
A. 1829
B. 1864
C. 1871
D. 1913
2 Law of octaves was given by:
A. Al-Razi
B. Dobriener
C. Newland
D. Mendeleev
3 Modern Periodic table is based upon periodic function:
A. Atomic mass
B. Mass number
C. Nuclide Number
D. Atomic number
4 There were seven groups in periodic table proposed by:
A. Al-Razi
B. Dobrierner
C. Newland
D. Mendeleev
5 Atomic radius changes from top to bottom in a group.:
A. Increases
B. Decreases
C. Remains same
D. Sometimes increases & Decreases
6 E.N. Value of fluorine is:
A. 2.1
B. 2.5
C. 3.5
D. 4.0
7 Electron affinity value from higher to heavier element:
A. Increase
B. Decreases
C. remains same
D. Not effect
8 Which group elements are the least metallic in nature?
A. IV-A
B. V-A
C. VI-A
D. VII-A
9 Law of triads was given by:
A. Al-Razi
B. Dobriener
C. Newland
D. Mendeleev
10 Scientist(s) made contributions in the field designing a periodic table
A. Newland
B. Dobriener
C. Mendeleev & Mosley
D. All of these

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