Question

Which of the following statements is correct?

A. Elements of $$3d$$  and $$4d$$  - series are kept separately in periodic table.
B. Elements of $$4f$$  and $$5f$$  - series are kept separately in periodic table.  
C. Elements of $$5p$$  and $$6p$$  - series are kept separately in periodic table.
D. All statements are correct.
Answer :   Elements of $$4f$$  and $$5f$$  - series are kept separately in periodic table.
Solution :
Elements of $$4f$$  - and $$5f$$  - series are kept separately as lanthanoids and actinoids.

Releted MCQ Question on
Inorganic Chemistry >> Classification of Elements and Periodicity in Properties

Releted Question 1

The correct order of second ionisation potential of carbon, nitrogen, oxygen and fluorine is

A. $$C > N > O > F$$
B. $$O > N > F > C$$
C. $$O > F > N > C$$
D. $$F > O > N > C$$
Releted Question 2

The element with the highest first ionization potential is

A. boron
B. carbon
C. nitrogen
D. oxygen
Releted Question 3

The first ionisation potential in electron volts of nitrogen and oxygen atoms are respectively given by

A. $$14.6,13.6\,$$
B. $$13.6,14.6$$
C. $$13.6,13.6$$
D. $$14.6,14.6$$
Releted Question 4

Atomic radii of fluorine and neon in $$\mathop {\text{A}}\limits^ \circ $$ngstorm units are respectively given by

A. $$0.72,1.60$$
B. $$1.60,1.60\,$$
C. $$0.72,0.72\,\,$$
D. None of these values

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Classification of Elements and Periodicity in Properties


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