Science - Online Test
Q1. If a sound wave travels with a frequency of 1.25
× 104 Hz at 344 m s–1, the wavelength will be
Answer : Option C
Explaination / Solution:
No Explaination.
Q2. ____________ isotope is used for the treatment of cancer.
Answer : Option B
Explaination / Solution:
No Explaination.
Q3. Which of the following represents 1 amu?
Answer : Option C
Explaination / Solution:
No Explaination.
Q4. Chemical formula of rust is
Answer : Option C
Explaination / Solution:
No Explaination.
Q5. When pressure is increased at constant temperature the solubility of gases in liquid ___________.
Answer : Option B
Explaination / Solution:
No Explaination.
Q6.
A single
displacement reaction is represented by X(s) + 2HCl(aq) →
XCl2(aq) + H2(g). Which of the following(s) could be X.
(i) Zn
(ii) Ag (iii) Cu (iv) Mg.
Answer : Option D
Explaination / Solution:
No Explaination.
Q7. Rectified spirit is an aqueous solution which contains about _______ of ethanol
Answer : Option A
Explaination / Solution:
No Explaination.
Q8. Oxygen is produced at what point during photosynthesis ?
Answer : Option C
Explaination / Solution:
No Explaination.
Q9. Mammals are ______________ animals.
Answer : Option B
Explaination / Solution:
No Explaination.
Q10. The wall of human heart is made of
Answer : Option D
Explaination / Solution:
No Explaination.
