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

Electron affinity value from higher to heavier element:

Question # 2

Dobereiner gave his law in the year:

Question # 3

There were seven groups in periodic table proposed by:

Question # 4

Sodium belongs to block of periodic table:

Question # 5

Alkali and alkaline earth metals are basic oxides except:

Question # 6

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

Question # 7

Period Number 6 contains elements in it:

Question # 8

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

Question # 9

Newland's was scientist:

Question # 10

the element not known till Mandleev tabulated his periodic table:

Question # 11

The periodic function of properties of elements is their atomic number

Question # 12

Modern Periodic table is based upon periodic function:

Question # 13

Ionization energy of sodium is (Kj/mol)

Question # 14

Mosley gave his periodic law in the year:

Question # 15

Mark the correct statement:

Question # 16

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

Question # 17

Mendeleev gave his periodic law in the year:

Question # 18

Mendeleev was a scientist:

Question # 19

Oxidation state of boron, aluminium and gallium is:

Question # 20

Hydrides are:

Question # 21

Hydration energy depends upon:

Question # 22

Which group elements are the least metallic in nature?

Question # 23

Newland said, every eight element repeats properties of element:

Question # 24

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

Question # 25

Oxidation state of an element in free state is:

Question # 26

Properties of metal are:

Question # 27

Newland gave his law in the year:

Question # 28

Dobriener's was a scientist:

Question # 29

Law of triads was given by:

Question # 30

Binary compounds of hydrogens are called:

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Sr.# Question Answer
1 Mendeleev gave his periodic law in the year:
A. 1829
B. 1864
C. 1871
D. 1913
2 Atomic radius changes from top to bottom in a group.:
A. Increases
B. Decreases
C. Remains same
D. Sometimes increases & Decreases
3 Ionization energy of sodium is (Kj/mol)
A. 503
B. 523
C. 513
D. 524
4 Mendeleev was a scientist:
A. Russioan
B. German
C. English
D. French
5 Element with higher oxidation state form oxides:
A. Acidic
B. Basic
C. Ampholetic
D. Peroxides

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