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

Periodic law was given by:

Question # 2

Mark the correct statement:

Question # 3

Alkali and alkaline earth metals are basic oxides except:

Question # 4

Law of octaves was given by:

Question # 5

Newland said, every eight element repeats properties of element:

Question # 6

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

Question # 7

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

Question # 8

Newland gave his law in the year:

Question # 9

Dobriener's was a scientist:

Question # 10

Mosley gave his periodic law in the year:

Question # 11

Mendeleev gave his periodic law in the year:

Question # 12

Hydration energy depends upon:

Question # 13

Law of triads was given by:

Question # 14

Oxidation state of boron, aluminium and gallium is:

Question # 15

Binary compounds of hydrogens are called:

Question # 16

Which group elements are the least metallic in nature?

Question # 17

the element not known till Mandleev tabulated his periodic table:

Question # 18

Hydrides are:

Question # 19

Element with higher oxidation state form oxides:

Question # 20

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

Question # 21

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

Question # 22

Sodium belongs to block of periodic table:

Question # 23

Newland's gave law:

Question # 24

Modern Periodic table is based upon periodic function:

Question # 25

E.N. Value of fluorine is:

Question # 26

Properties of metal are:

Question # 27

Oxidation state of an element in free state is:

Question # 28

Mendeleev was a scientist:

Question # 29

Newland's was scientist:

Question # 30

The periodic function of properties of elements is their atomic number

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