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

00:00
Question # 1

Newland's gave law:

Question # 2

Properties of metal are:

Question # 3

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

Question # 4

Oxidation state of an element in free state is:

Question # 5

Which group elements are the least metallic in nature?

Question # 6

Dobereiner gave his law in the year:

Question # 7

Periodic law was given by:

Question # 8

There were seven groups in periodic table proposed by:

Question # 9

E.N. Value of fluorine is:

Question # 10

Period Number 6 contains elements in it:

Question # 11

Mark the correct statement:

Question # 12

Mendeleev gave his periodic law in the year:

Question # 13

Newland's was scientist:

Question # 14

Hydrides are:

Question # 15

Element with higher oxidation state form oxides:

Question # 16

Newland gave his law in the year:

Question # 17

Electron affinity value from higher to heavier element:

Question # 18

Mendeleev was a scientist:

Question # 19

Newland said, every eight element repeats properties of element:

Question # 20

Alkali and alkaline earth metals are basic oxides except:

Question # 21

Hydration energy depends upon:

Question # 22

Binary compounds of hydrogens are called:

Question # 23

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

Question # 24

Dobriener's was a scientist:

Question # 25

Mosley gave his periodic law in the year:

Question # 26

Ionization energy of sodium is (Kj/mol)

Question # 27

Oxidation state of boron, aluminium and gallium is:

Question # 28

The periodic function of properties of elements is their atomic number

Question # 29

Sodium belongs to block of periodic table:

Question # 30

Law of triads was given by:

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ECAT Chemistry Chapter 12 Important MCQ's

Sr.# Question Answer
1 Properties of metal are:
A. Malleable and ductile
B. Form basic oxides
C. Tamish in air
D. All are true
2 Binary compounds of hydrogens are called:
A. Halides
B. Hydrides
C. Oxides
D. Nitrides
3 Newland said, every eight element repeats properties of element:
A. 1st
B. 2nd
C. 3rd
D. 4th
4 First of all, idea of groups and periods was introduced by:
A. Al-Razi
B. Dobriener
C. Newland
D. Mendeleev
5 There were seven groups in periodic table proposed by:
A. Al-Razi
B. Dobrierner
C. Newland
D. Mendeleev
6 Oxidation state of boron, aluminium and gallium is:
A. +1
B. +2
C. +3
D. +5
7 Electron affinity value from higher to heavier element:
A. Increase
B. Decreases
C. remains same
D. Not effect
8 Hydration energy depends upon:
A. Change of Ion
B. Size of Ion
C. Charge to size ratio
D. Heat changes
9 Ionization energy of sodium is (Kj/mol)
A. 503
B. 523
C. 513
D. 524
10 the element not known till Mandleev tabulated his periodic table:
A. Carbon
B. Hydrogen
C. Aluminum
D. Germanium

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