9th Standard Syllabus & Materials
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: 09/12/2020
9th Standard Science Chemical Bonding English Medium Free Online Test 1 Mark Questions with Answer Key 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.
The property which is characteristics of an Ionic compound is that
it often exists as gas at room temperature
it is hard and brittle
it undergoes molecular reactions
it has low melting point
2.
Statement (A) : Covalent compounds are bad conductor of electricity.
Reason (B) Covalent compounds contain charged particles (ions)
B explains A
B does not explain A
Both A & B are right
Both A & B are wrong
3.
Which of the following compound(s) possesses high melting point?
NaCI
MgCI2
CCl4
Both a & b
4.
_______________is an example of a covalent compound having high melting point
Magnesium oxide
Silicon carbide
Ammonia
All the above
5.
The bond which is formed by mutual sharing of electrons is called ________bond.
ionic
covalent
co-ordinate covalent bond
all the above
6.
Alkali and alkaline earth metals form____________ compound when they react with nonmetals
ionic
covalent
co-ordinate covalent
all the above
7.
Oxidising agents are also called as____________because they remove electrons form other substances.
electron donors
electron acceptors
reducing agents
Ionic agents
8.
____________compounds have high melting and boiling points.
Covalent
Coordinate
Ionic
Coordinate
9.
The element that would form anion by gaining electrons in a chemical reaction is ___________.
Potassium
Calcium
Fluorine
Iron
10.
Sodium having atomic number 11, is ready to_______________electron/electrons to attain the nearest noble gas electronic configuration.
gain one
gain two
lose one
lose two
1.
(a)
it often exists as gas at room temperature
2.
(b)
B does not explain A
3.
(d)
Both a & b
4.
(b)
Silicon carbide
5.
(b)
covalent
6.
(a)
ionic
7.
(b)
electron acceptors
8.
(c)
Ionic
9.
(c)
Fluorine
10.
(c)
lose one
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
