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

Oxidation state of an element in free state is:

Question # 2

the element not known till Mandleev tabulated his periodic table:

Question # 3

Mendeleev gave his periodic law in the year:

Question # 4

Element with higher oxidation state form oxides:

Question # 5

Properties of metal are:

Question # 6

Oxidation state of boron, aluminium and gallium is:

Question # 7

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

Question # 8

Alkali and alkaline earth metals are basic oxides except:

Question # 9

Newland said, every eight element repeats properties of element:

Question # 10

E.N. Value of fluorine is:

Question # 11

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

Question # 12

Mosley gave his periodic law in the year:

Question # 13

Binary compounds of hydrogens are called:

Question # 14

Dobriener's was a scientist:

Question # 15

Mendeleev was a scientist:

Question # 16

Newland's was scientist:

Question # 17

Period Number 6 contains elements in it:

Question # 18

Newland's gave law:

Question # 19

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

Question # 20

Law of triads was given by:

Question # 21

Hydration energy depends upon:

Question # 22

Newland gave his law in the year:

Question # 23

Mark the correct statement:

Question # 24

Ionization energy of sodium is (Kj/mol)

Question # 25

Dobereiner gave his law in the year:

Question # 26

Sodium belongs to block of periodic table:

Question # 27

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

Question # 28

Which group elements are the least metallic in nature?

Question # 29

There were seven groups in periodic table proposed by:

Question # 30

Hydrides are:

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ECAT Chemistry Chapter 12 Important MCQ's

Sr.# Question Answer
1 the element not known till Mandleev tabulated his periodic table:
A. Carbon
B. Hydrogen
C. Aluminum
D. Germanium
2 Mosley gave his periodic law in the year:
A. 1829
B. 1864
C. 1871
D. 1913
3 Law of triads was given by:
A. Al-Razi
B. Dobriener
C. Newland
D. Mendeleev
4 Electron affinity value from higher to heavier element:
A. Increase
B. Decreases
C. remains same
D. Not effect
5 Element with higher oxidation state form oxides:
A. Acidic
B. Basic
C. Ampholetic
D. Peroxides
6 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
7 Period Number 6 contains elements in it:
A. 2
B. 8
C. 18
D. 32
8 Mendeleev was a scientist:
A. Russioan
B. German
C. English
D. French
9 Modern Periodic table is based upon periodic function:
A. Atomic mass
B. Mass number
C. Nuclide Number
D. Atomic number
10 Alkali and alkaline earth metals are basic oxides except:
A. Li
B. Be
C. Fr
D. Ba

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