TN 10TH SCIENCE - Online Test

Q1. If a substance is heated or cooled, the change in mass of that substance is
Answer : Option C
Explaination / Solution:
No Explaination.


Q2. SI unit of resistance is
Answer : Option C
Explaination / Solution:
No Explaination.


Q3. Velocity of sound in a gaseous medium is 330 m s–1. If the pressure is increased by 4 times without causing a change in the temperature, the velocity of sound in the gas is
Answer : Option C
Explaination / Solution:
No Explaination.


Q4. Unit of radioactivity is
Answer : Option D
Explaination / Solution:
No Explaination.


Q5. Which of the following is a triatomic molecule?
Answer : Option C
Explaination / Solution:
No Explaination.


Q6. The basis of modern periodic law is
Answer : Option A
Explaination / Solution:
No Explaination.


Q7. Which of the following is the universal solvent?
Answer : Option C
Explaination / Solution:
No Explaination.


Q8. A reaction between carbon and oxygen is represented by C(s) + O2(g) → CO2(g) + Heat. In which of the type(s), the above reaction can be classified?

(i) Combination Reaction

(ii) Combustion Reaction

(iii) Decomposition Reaction

(iv) Irreversible Reaction

Answer : Option D
Explaination / Solution:
No Explaination.


Q9. The secondary suffix used in IUPAC nomenclature of an aldehyde is ____
Answer : Option C
Explaination / Solution:
No Explaination.


Q10. The xylem and phloem arranged side by side on same radius is called _________
Answer : Option C
Explaination / Solution:
No Explaination.