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

Dobereiner gave his law in the year:

Question # 2

Mendeleev was a scientist:

Question # 3

Newland said, every eight element repeats properties of element:

Question # 4

Mark the correct statement:

Question # 5

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

Question # 6

Periodic law was given by:

Question # 7

Newland gave his law in the year:

Question # 8

Hydration energy depends upon:

Question # 9

Which group elements are the least metallic in nature?

Question # 10

There were seven groups in periodic table proposed by:

Question # 11

The periodic function of properties of elements is their atomic number

Question # 12

Electron affinity value from higher to heavier element:

Question # 13

Period Number 6 contains elements in it:

Question # 14

Sodium belongs to block of periodic table:

Question # 15

Mosley gave his periodic law in the year:

Question # 16

Law of octaves was given by:

Question # 17

Binary compounds of hydrogens are called:

Question # 18

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

Question # 19

Modern Periodic table is based upon periodic function:

Question # 20

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

Question # 21

Oxidation state of an element in free state is:

Question # 22

Alkali and alkaline earth metals are basic oxides except:

Question # 23

the element not known till Mandleev tabulated his periodic table:

Question # 24

Law of triads was given by:

Question # 25

Mendeleev gave his periodic law in the year:

Question # 26

Hydrides are:

Question # 27

Newland's was scientist:

Question # 28

Newland's gave law:

Question # 29

Dobriener's was a scientist:

Question # 30

Element with higher oxidation state form oxides:

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ECAT Chemistry Chapter 12 Important MCQ's

Sr.# Question Answer
1 Ionization energy of sodium is (Kj/mol)
A. 503
B. 523
C. 513
D. 524
2 Period Number 6 contains elements in it:
A. 2
B. 8
C. 18
D. 32
3 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
4 Hydrides are:
A. Ionic
B. Covalent
C. Intermediate
D. All above
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 Atomic radius changes from top to bottom in a group.:
A. Increases
B. Decreases
C. Remains same
D. Sometimes increases & Decreases
7 Law of triads was given by:
A. Al-Razi
B. Dobriener
C. Newland
D. Mendeleev
8 Mendeleev gave his periodic law in the year:
A. 1829
B. 1864
C. 1871
D. 1913
9 Mosley gave his periodic law in the year:
A. 1829
B. 1864
C. 1871
D. 1913
10 Law of octaves was given by:
A. Al-Razi
B. Dobriener
C. Newland
D. Mendeleev

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