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

Oxidation state of an element in free state is:

Question # 2

Electron affinity value from higher to heavier element:

Question # 3

Binary compounds of hydrogens are called:

Question # 4

Newland gave his law in the year:

Question # 5

Dobriener's was a scientist:

Question # 6

There were seven groups in periodic table proposed by:

Question # 7

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

Question # 8

Period Number 6 contains elements in it:

Question # 9

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

Question # 10

Law of triads was given by:

Question # 11

Element with higher oxidation state form oxides:

Question # 12

Mark the correct statement:

Question # 13

Mendeleev was a scientist:

Question # 14

The periodic function of properties of elements is their atomic number

Question # 15

Ionization energy of sodium is (Kj/mol)

Question # 16

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

Question # 17

Hydration energy depends upon:

Question # 18

Mosley gave his periodic law in the year:

Question # 19

E.N. Value of fluorine is:

Question # 20

Mendeleev gave his periodic law in the year:

Question # 21

Which group elements are the least metallic in nature?

Question # 22

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

Question # 23

Alkali and alkaline earth metals are basic oxides except:

Question # 24

Periodic law was given by:

Question # 25

Dobereiner gave his law in the year:

Question # 26

Law of octaves was given by:

Question # 27

Sodium belongs to block of periodic table:

Question # 28

the element not known till Mandleev tabulated his periodic table:

Question # 29

Oxidation state of boron, aluminium and gallium is:

Question # 30

Newland's gave law:

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Sr. # Question Answer
1 Electron affinity value from higher to heavier element:

A. Increase

B. Decreases

C.remains same

D. Not effect

2 Element with higher oxidation state form oxides:

A. Acidic

B. Basic

C.Ampholetic

D. Peroxides

3 Mendeleev gave his periodic law in the year:

A. 1829

B. 1864

C.1871

D. 1913

4 E.N. Value of fluorine is:

A. 2.1

B. 2.5

C.3.5

D. 4.0

5 Law of triads was given by:

A. Al-Razi

B. Dobriener

C.Newland

D. Mendeleev

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