10th Standard Syllabus & Materials
10th Standard
TN 10th Social Science ECO - Industrial Clusters in Tamilnadu - New Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th Social Science ECO - Government and Taxes - New Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th Social Science ECO - Food Security and Nutrition - New Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th Social Science ECO - Globalization and Trade - New Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th Social Science ECO - Gross Domestic Product and its Growth : an Introduction - New Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th Social Science CIV - India's International Relations - New Important Questions And Answers Study Material - QB365 Set A
Published on: 05/12/2020
10th Standard Science Periodic Classification of Elements English Medium Free Online Test 1 Mark Questions 2020-2021
Download Tamil Nadu 10th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
Blister copper contains _________
50% pure copper
99% pure copper and 1% impurities
98% pure copper and 2% impurities
75% pure copper and 25% impurities
2.
The chemical formula of sodium meta aluminate is ___________
NaAlO2
Na2AlO2
NaAl2O2
Na2Al2O3
3.
The process of extraction of aluminium from bauxite is called ____________ process
Hall's
Baeyer's
Smelting
Calcination
4.
The process of extracting the ore from the earth's crust is ____________
Metallurgy
Mining
Smelting
Leaching
5.
The distance from the centre of the nucleus to the outer most electron in an ion is termed as _________ radii.
atomic
ionic
Covalent
both (b) and (c)
6.
Potassium belongs to ________ period
First
Second
Third
Fourth
7.
The green layer found on the copper vessel is due to the formation of ________
basic copper carbonate
cupric oxide
cuprous oxide
copper chloride
8.
Neon shows zero electron affinity due to _____.
stable arrangement of neutrons
stable configuration of electrons
reduced size
increased density
9.
Chemical formula of rust is ________.
FeO.xH2O
FeO4.xH2O
Fe2O3.xH2O
FeO
10.
The basis of modern periodic law is__________.
atomic number
atomic mass
isotopic mass
number of neutrons
1.
(c)
98% pure copper and 2% impurities
2.
(a)
NaAlO2
3.
(b)
Baeyer's
4.
(b)
Mining
5.
(b)
ionic
6.
(d)
Fourth
7.
(a)
basic copper carbonate
8.
(b)
stable configuration of electrons
9.
(c)
Fe2O3.xH2O
10.
(a)
atomic number
10th Standard Syllabus & Materials
10th Standard
TN 10th Social Science CIV - India's Foreign Policy - New Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th Social Science CIV - State Government - New Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th Social Science CIV - Central Government - New Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th Social Science CIV - Indian Constitution - New Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
