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9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -கற்கண்டு (இலக்கணம்) - தொடர் இலக்கணம், ஆகுபெயர் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -விரிவானம் (துணைப்பாடம்) - தாய்மைக்கு வறட்சி இல்லை! Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -கவிதை பேழை (செய்யுள்) - மார்கழி பெருவிழா Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உயிருக்கு வேர்-இலக்கணம் - பகுபத உறுப்பிலக்கணம் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil அமுதென்று பேர் - இலக்கணம்-எழுத்து -அளபெடை Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil அமுதென்று பேர்-துணைப்பாடம் - ஆறாம்திணை Important Questions And Answers Study Material - QB365 Set A
Published on: 08/12/2020
9th Standard Science Chemical Bonding English Medium Free Online Test 1 Mark Questions 2020-2021
Download Tamil Nadu 9th 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.
Statement (A) Ionic compounds do not conduct electricity in solid state.
Reason (B) The ions in ionic compounds are tightly held together by strong electrostatic force of attraction and they cannot move freely
B explains A
B does not explain A
B is wrong A
A is right B is wrong
2.
Which of the following compound(s) possesses high melting point?
NaCl
MgCl2
CCl4
Both a & b
3.
_______________is an example of a covalent compound having high melting point
Magnesium oxide
Silicon carbide
Ammonia
All the above
4.
___________compounds are highly brittle
Ionic
Covalent
Co-ordinate covalent
Covalent
5.
Which of the following atom can exist independently?
Magnesium
Chlorine
Hydrogen
Neon
6.
Elements with stable electronic configurations have eight electrons in their valence shell. They are__________
Halogens
Metals
Noble gases
non metals
7.
Covalent bond is formed by_________
transfer of electrons
sharing of electrons
sharing a pair of electrons
transfer of electrons
8.
Bond formed between a metal and non-metal atom is usually____________
ionic bond
covalent bond
co-ordinate bond
metallic bond
9.
Atoms having 1, 2 or 3 electrons in its valence shell will readily form_____________
cation
anion
Calcium
electron
10.
Number of valence electrons in carbon is
2
3
4
5
1.
(a)
B explains A
2.
(d)
Both a & b
3.
(b)
Silicon carbide
4.
(a)
Ionic
5.
(d)
Neon
6.
(c)
Noble gases
7.
(b)
sharing of electrons
8.
(a)
ionic bond
9.
(a)
cation
10.
(c)
4
9th Standard Syllabus & Materials
9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - மணிமேகலை Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - ஏறு தழுவுதல் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உயிருக்கு வேர் - தண்ணீர் Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 9th Standard Subjects
Tamilnadu Stateboard Standards
