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

Mendeleev was a scientist:

Question # 2

Dobriener's was a scientist:

Question # 3

Modern Periodic table is based upon periodic function:

Question # 4

Hydrides are:

Question # 5

Law of octaves was given by:

Question # 6

Hydration energy depends upon:

Question # 7

Mosley gave his periodic law in the year:

Question # 8

Newland's gave law:

Question # 9

Mendeleev gave his periodic law in the year:

Question # 10

Ionization energy of sodium is (Kj/mol)

Question # 11

E.N. Value of fluorine is:

Question # 12

Newland said, every eight element repeats properties of element:

Question # 13

Periodic law was given by:

Question # 14

Period Number 6 contains elements in it:

Question # 15

Electron affinity value from higher to heavier element:

Question # 16

The periodic function of properties of elements is their atomic number

Question # 17

Law of triads was given by:

Question # 18

Newland gave his law in the year:

Question # 19

Dobereiner gave his law in the year:

Question # 20

Oxidation state of boron, aluminium and gallium is:

Question # 21

Element with higher oxidation state form oxides:

Question # 22

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

Question # 23

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

Question # 24

Binary compounds of hydrogens are called:

Question # 25

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

Question # 26

Alkali and alkaline earth metals are basic oxides except:

Question # 27

There were seven groups in periodic table proposed by:

Question # 28

Which group elements are the least metallic in nature?

Question # 29

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

Question # 30

Oxidation state of an element in free state is:

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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 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.
3 Law of triads was given by:
A. Al-Razi
B. Dobriener
C. Newland
D. Mendeleev
4 Hydration energy depends upon:
A. Change of Ion
B. Size of Ion
C. Charge to size ratio
D. Heat changes
5 The periodic function of properties of elements is their atomic number
A. Al-Razi
B. Mosley
C. Newland
D. Mendeleev
6 Properties of metal are:
A. Malleable and ductile
B. Form basic oxides
C. Tamish in air
D. All are true
7 Period Number 6 contains elements in it:
A. 2
B. 8
C. 18
D. 32
8 Alkali and alkaline earth metals are basic oxides except:
A. Li
B. Be
C. Fr
D. Ba
9 Element with higher oxidation state form oxides:
A. Acidic
B. Basic
C. Ampholetic
D. Peroxides
10 Dobriener's was a scientist:
A. Russian
B. German
C. English
D. French

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