10th Standard Syllabus & Materials
10th Standard
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Published on: 29/08/2019
Periodic Classification of Elements
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Questions + Answers key
Take MCQ Science Test1.
Potassium belongs to ________ period
First
Second
Third
Fourth
2.
The number of elements present in sixth period of modern periodic table is __________
8
18
16
32
3.
The first period of the modern periodic table has ________ elements.
1
2
3
8
4.
Modern periodic law is based on __________
atomic mass
atomic number
number of neutrons
Both (a) and (b)
5.
The number of neutrons in 8O16 is ________
8
16
32
24
6.
The green layer found on the copper vessel is due to the formation of ________
basic copper carbonate
cupric oxide
cuprous oxide
copper chloride
7.
The acid which makes iron passive is _______________
Conc. HCl
Cone. H2SO4
Cone. HNO3
Cone. HF
8.
Neon shows zero electron affinity due to _____.
stable arrangement of neutrons
stable configuration of electrons
reduced size
increased density
9.
The basis of modern periodic law is__________.
atomic number
atomic mass
isotopic mass
number of neutrons
10.
The number of periods and groups in the periodic table are__________.
6,16
7,17
8,18
7,18
11.
Horizontal rows in periodic table are called ________
12.
According to Mendeleev's periodic table, the physical and chemical properties of elements are periodic function of their _______________
13.
The symbol of an element is Uno; Its atomic number is ____________
14.
The chemical name of rust is____________
15.
The chief ore of Aluminium is ________.
16.
Alkali metal
17.
Sixth
18.
Fourth
19.
Third
20.
First
1.
(d)
Fourth
2.
(d)
32
3.
(b)
2
4.
(b)
atomic number
5.
(a)
8
6.
(a)
basic copper carbonate
7.
(c)
Cone. HNO3
8.
(b)
stable configuration of electrons
9.
(a)
atomic number
10.
(d)
7,18
11.
( )
Periods
12.
( )
atomic mass
13.
( )
108
14.
( )
hydrated ferric oxide
15.
( )
Bauxite
16.
1
17.
32
18.
18
19.
8
20.
2
10th Standard Syllabus & Materials
10th Standard
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Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards