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 gave his periodic law in the year:

Question # 2

Electron affinity value from higher to heavier element:

Question # 3

Modern Periodic table is based upon periodic function:

Question # 4

Dobriener's was a scientist:

Question # 5

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

Question # 6

Hydration energy depends upon:

Question # 7

Newland said, every eight element repeats properties of element:

Question # 8

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

Question # 9

The periodic function of properties of elements is their atomic number

Question # 10

Oxidation state of an element in free state is:

Question # 11

Oxidation state of boron, aluminium and gallium is:

Question # 12

Alkali and alkaline earth metals are basic oxides except:

Question # 13

Mendeleev was a scientist:

Question # 14

Which group elements are the least metallic in nature?

Question # 15

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

Question # 16

the element not known till Mandleev tabulated his periodic table:

Question # 17

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

Question # 18

Newland gave his law in the year:

Question # 19

Mosley gave his periodic law in the year:

Question # 20

Period Number 6 contains elements in it:

Question # 21

Properties of metal are:

Question # 22

Newland's gave law:

Question # 23

Mark the correct statement:

Question # 24

Dobereiner gave his law in the year:

Question # 25

E.N. Value of fluorine is:

Question # 26

Law of triads was given by:

Question # 27

Ionization energy of sodium is (Kj/mol)

Question # 28

Binary compounds of hydrogens are called:

Question # 29

Law of octaves was given by:

Question # 30

Hydrides are:

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ECAT Chemistry Chapter 12 Important MCQ's

Sr.# Question Answer
1 Element with higher oxidation state form oxides:
A. Acidic
B. Basic
C. Ampholetic
D. Peroxides
2 Alkali and alkaline earth metals are basic oxides except:
A. Li
B. Be
C. Fr
D. Ba
3 Scientist(s) made contributions in the field designing a periodic table
A. Newland
B. Dobriener
C. Mendeleev & Mosley
D. All of these
4 Law of triads was given by:
A. Al-Razi
B. Dobriener
C. Newland
D. Mendeleev
5 Properties of metal are:
A. Malleable and ductile
B. Form basic oxides
C. Tamish in air
D. All are true
6 All facts of chemistry must be in simple logical patterns because chemistry is a subject:
A. Simple
B. Complex
C. Un-understandable
D. Easy
7 Sodium belongs to block of periodic table:
A. S-Block
B. p- block
C. d- block
D. f- bloci
8 Binary compounds of hydrogens are called:
A. Halides
B. Hydrides
C. Oxides
D. Nitrides
9 Newland said, every eight element repeats properties of element:
A. 1st
B. 2nd
C. 3rd
D. 4th
10 Oxidation state of an element in free state is:
A. Its numebr of elemtrons lost
B. Its number of electrons gained
C. zero
D. Its number of electrons shared

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