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: 13/05/2022
QB365 provides detailed and simple solution for every Book back Questions in class 9 Science Subject. It will helps to get more idea about question pattern in every book back questions with solution.
latest Book back QuestionsDownload 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.
Considering MgCl2 as ionic compound and CH4 as covalent compound give any two differences between these two compounds.
2.
Identify the compounds as Ionic/Covalent/Coordinate based on the given characteristics.
a. Soluble in non polar solvents -
b. undergoes faster/instantaneous reactions -
c. Non conductors of electricity -
d. Solids at room temperature -
3.
Draw the electron distribution diagram for the formation of Carbon di oxide (CO2) molecule.
4.
Write a note on different types on bonds?
5.
NaCl4 is insoluble in carbon tetrachloride but soluble in water. Give reason.
1.
| S.No. | MgCI2 (ionic compound | CH4 (covalent compound) |
| 1 | It is solid at room temperature | It is gaseous in nature |
| 2 | High melting and boiling point | Low melting and boiling point |
2.
a. Co-ordinate Covalent compound.
b. Ionic compound.
c. Covalent compound
d. Ionic compound
3.
4.
Chemical bonds are divided into two. One is strong bond and another one is weak bond. The strong bond is further divided into ionic bond, covalent bond, coordinate bond and metallic bond. Weak bond is divided into Hydrogen bond and Van der walls interaction.
5.
Sodium chloride formed by ionic bonding, so sodium chloride is a ionic compound, Ionic compounds are soluble in polar solvents like water. But ionic compounds are insoluble in non polar solvent like carbon tetrachloride. Sodium chloride is a ionic compound so it is insoluble in carbon tetrachloride.
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
