Periodic Classification of Elements Quiz Online

Periodic Classification of Elements concepts are essential to learning for every level in chemistry courses. Here, we have compiled many Periodic Classification of Elements quizzes free for students of grades 11 and 12. We hope you will find this very useful for your regular exam preparations and entry tests at undergraduate levels, particularly for medical and engineering students (MDCAT, ECAT, NUST, NUMS, JEE, NEET).

INSTRUCTIONS:

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Results

#1. The concept of Triads was introduced by:

Dobereiner

Dobereiner

Al-Razi

Al-Razi

Mendeleev

Mendeleev

Newland

Newland

#2. Which element was not known when Mendeleev proposed his classification?

Sodium

Sodium

Copper

Copper

Germanium

Germanium

Hydrogen

Hydrogen

#3. Elements with similar chemical properties appear in the:

Same family

Same family

Right upper corner

Right upper corner

p block elements

p block elements

Same period

Same period

#4. Noble gases are named so because they are:

Zero group elements

Zero group elements

less reactive

less reactive

Having completely filled valence shell

Having completely filled valence shell

All

All

#5. In the modern periodic table, all the elements are arranged in ascending order of:

Valency

Valency

Valence electrons

Valence electrons

Atomic number

Atomic number

Atomic mass

Atomic mass

#6. The longest period in the modern periodic table is:

7th

7th

5th

5th

2nd and 3rd both

2nd and 3rd both

6th

6th

#7. Inner transition elements are called:

Lanthanides

Lanthanides

Actinides

Actinides

Rare earth metals

Rare earth metals

All

All

#8. Seventh period contains ______________ normal elements:

6

6

8

8

2

2

4

4

#9. Modern periodic table has been divided in _______ blocks:

2

2

4

4

8

8

7

7

#10. Non-metals usually form ______________ oxides:

Acidic

Acidic

Amphoteric

Amphoteric

Neutral

Neutral

All of the above

All of the above

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