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

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

Question # 2

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

Question # 3

Oxidation state of boron, aluminium and gallium is:

Question # 4

Which group elements are the least metallic in nature?

Question # 5

Oxidation state of an element in free state is:

Question # 6

Ionization energy of sodium is (Kj/mol)

Question # 7

Newland gave his law in the year:

Question # 8

Newland's was scientist:

Question # 9

Dobereiner gave his law in the year:

Question # 10

Modern Periodic table is based upon periodic function:

Question # 11

Mark the correct statement:

Question # 12

E.N. Value of fluorine is:

Question # 13

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

Question # 14

Mendeleev gave his periodic law in the year:

Question # 15

Electron affinity value from higher to heavier element:

Question # 16

Alkali and alkaline earth metals are basic oxides except:

Question # 17

Binary compounds of hydrogens are called:

Question # 18

Element with higher oxidation state form oxides:

Question # 19

Dobriener's was a scientist:

Question # 20

Newland said, every eight element repeats properties of element:

Question # 21

Period Number 6 contains elements in it:

Question # 22

Mosley gave his periodic law in the year:

Question # 23

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

Question # 24

Hydration energy depends upon:

Question # 25

the element not known till Mandleev tabulated his periodic table:

Question # 26

Law of triads was given by:

Question # 27

The periodic function of properties of elements is their atomic number

Question # 28

There were seven groups in periodic table proposed by:

Question # 29

Mendeleev was a scientist:

Question # 30

Periodic law was given by:

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