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

Dobereiner gave his law in the year:

Question # 2

Newland gave his law in the year:

Question # 3

Binary compounds of hydrogens are called:

Question # 4

the element not known till Mandleev tabulated his periodic table:

Question # 5

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

Question # 6

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

Question # 7

Dobriener's was a scientist:

Question # 8

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

Question # 9

Alkali and alkaline earth metals are basic oxides except:

Question # 10

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

Question # 11

There were seven groups in periodic table proposed by:

Question # 12

Hydrides are:

Question # 13

Sodium belongs to block of periodic table:

Question # 14

Mendeleev was a scientist:

Question # 15

Newland said, every eight element repeats properties of element:

Question # 16

Hydration energy depends upon:

Question # 17

Oxidation state of boron, aluminium and gallium is:

Question # 18

The periodic function of properties of elements is their atomic number

Question # 19

Oxidation state of an element in free state is:

Question # 20

Periodic law was given by:

Question # 21

E.N. Value of fluorine is:

Question # 22

Modern Periodic table is based upon periodic function:

Question # 23

Mosley gave his periodic law in the year:

Question # 24

Law of octaves was given by:

Question # 25

Element with higher oxidation state form oxides:

Question # 26

Newland's was scientist:

Question # 27

Electron affinity value from higher to heavier element:

Question # 28

Properties of metal are:

Question # 29

Period Number 6 contains elements in it:

Question # 30

Law of triads was given by:

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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 Properties of metal are:
A. Malleable and ductile
B. Form basic oxides
C. Tamish in air
D. All are true
3 Mendeleev was a scientist:
A. Russioan
B. German
C. English
D. French
4 Newland's gave law:
A. Triad's law
B. Octaves law
C. Period law
D. Moderen periodic law
5 Newland's was scientist:
A. Russian
B. German
C. English
D. French

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