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

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Question # 1

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

Question # 2

Mosley gave his periodic law in the year:

Question # 3

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

Question # 4

Oxidation state of boron, aluminium and gallium is:

Question # 5

The periodic function of properties of elements is their atomic number

Question # 6

Period Number 6 contains elements in it:

Question # 7

Dobriener's was a scientist:

Question # 8

E.N. Value of fluorine is:

Question # 9

Newland said, every eight element repeats properties of element:

Question # 10

Alkali and alkaline earth metals are basic oxides except:

Question # 11

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

Question # 12

the element not known till Mandleev tabulated his periodic table:

Question # 13

Law of triads was given by:

Question # 14

Dobereiner gave his law in the year:

Question # 15

Atomic radius changes from top to bottom in a group.:

Question # 16

Which group elements are the least metallic in nature?

Question # 17

Electron affinity value from higher to heavier element:

Question # 18

Element with higher oxidation state form oxides:

Question # 19

Law of octaves was given by:

Question # 20

Ionization energy of sodium is (Kj/mol)

Question # 21

Periodic law was given by:

Question # 22

Binary compounds of hydrogens are called:

Question # 23

Mendeleev gave his periodic law in the year:

Question # 24

Sodium belongs to block of periodic table:

Question # 25

Newland's was scientist:

Question # 26

Newland's gave law:

Question # 27

Mendeleev was a scientist:

Question # 28

Hydrides are:

Question # 29

Newland gave his law in the year:

Question # 30

There were seven groups in periodic table proposed by:

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ECAT Chemistry Chapter 12 Important MCQ's

Sr.# Question Answer
1 Newland said, every eight element repeats properties of element:
A. 1st
B. 2nd
C. 3rd
D. 4th
2 Dobriener's was a scientist:
A. Russian
B. German
C. English
D. French
3 Binary compounds of hydrogens are called:
A. Halides
B. Hydrides
C. Oxides
D. Nitrides
4 There were seven groups in periodic table proposed by:
A. Al-Razi
B. Dobrierner
C. Newland
D. Mendeleev
5 All facts of chemistry must be in simple logical patterns because chemistry is a subject:
A. Simple
B. Complex
C. Un-understandable
D. Easy
6 First of all, idea of groups and periods was introduced by:
A. Al-Razi
B. Dobriener
C. Newland
D. Mendeleev
7 Ionization energy of sodium is (Kj/mol)
A. 503
B. 523
C. 513
D. 524
8 E.N. Value of fluorine is:
A. 2.1
B. 2.5
C. 3.5
D. 4.0
9 Mark the correct statement:
A. All lanthanides are present in the same period.
B. all halogens are present in he same period.
C. All the alkali metals are present in the same group.
D. All the noble gases are present in the same period.
10 Sodium belongs to block of periodic table:
A. S-Block
B. p- block
C. d- block
D. f- bloci

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