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

Mosley gave his periodic law in the year:

Question # 2

The periodic function of properties of elements is their atomic number

Question # 3

There were seven groups in periodic table proposed by:

Question # 4

Modern Periodic table is based upon periodic function:

Question # 5

Law of triads was given by:

Question # 6

Binary compounds of hydrogens are called:

Question # 7

Alkali and alkaline earth metals are basic oxides except:

Question # 8

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

Question # 9

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

Question # 10

Newland gave his law in the year:

Question # 11

Sodium belongs to block of periodic table:

Question # 12

Dobriener's was a scientist:

Question # 13

Oxidation state of boron, aluminium and gallium is:

Question # 14

Law of octaves was given by:

Question # 15

Electron affinity value from higher to heavier element:

Question # 16

Hydrides are:

Question # 17

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

Question # 18

Mendeleev gave his periodic law in the year:

Question # 19

E.N. Value of fluorine is:

Question # 20

Ionization energy of sodium is (Kj/mol)

Question # 21

Properties of metal are:

Question # 22

Newland's gave law:

Question # 23

Periodic law was given by:

Question # 24

Oxidation state of an element in free state is:

Question # 25

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

Question # 26

Newland's was scientist:

Question # 27

Dobereiner gave his law in the year:

Question # 28

Which group elements are the least metallic in nature?

Question # 29

Period Number 6 contains elements in it:

Question # 30

Newland said, every eight element repeats properties of element:

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Sr. # Question Answer
1 Binary compounds of hydrogens are called:

A. Halides

B. Hydrides

C.Oxides

D. Nitrides

2 the element not known till Mandleev tabulated his periodic table:

A. Carbon

B. Hydrogen

C.Aluminum

D. Germanium

3 Properties of metal are:

A. Malleable and ductile

B. Form basic oxides

C.Tamish in air

D. All are true

4 Newland's was scientist:

A. Russian

B. German

C.English

D. French

5 There were seven groups in periodic table proposed by:

A. Al-Razi

B. Dobrierner

C.Newland

D. Mendeleev

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