General Science - Online Test
Q1. Bioremediation of Phenol, one of the most common environmental pollutants is reported to be assisted by :
Answer : Option A
Explaination / Solution:
Bioremediation is a waste management technique that involves the use of organisms to remove or neutralize pollutants. Bioremediation of phenol is carried out using earthworms and bacteria.
Q2. The work function of a photoelectric material is 3.32 eV. The threshold frequency will be equal to
Answer : Option B
Explaination / Solution:
ϕ0=hν03.32×1.6×10−19=6.6×10−34×ν0ν0=3.32×1.6×10−196.6×10−34=8×1014Hz
Q3. Boron is unable to form BF6− ion.
Answer : Option D
Explaination / Solution:
Boron cannot expand its covalency due to absence of d orbitals.
Q4. “Dpi” stands for:
Answer : Option A
Explaination / Solution:
No Explaination.
Q5. The common salt or table salt is
Answer : Option C
Explaination / Solution:
Common salt is NaCl.
Q6. for a signal to be reproduced without distortion
Answer : Option A
Explaination / Solution:
No Explaination.
Q7. The organic compound given below is one of the four options given below. Choose the most appropriate one.
Answer : Option A
Explaination / Solution:
this is aliphatic heterocyclic compound.
Q8. If MPC is less than one, it follows that
Answer : Option D
Explaination / Solution:
No Explaination.
Q9. How much percentage of import and export were restricted to be between India and Britain
Answer : Option D
Explaination / Solution:
The focus was on exploitation of raw materials from India for the manufacturing industry of Britain.
Q10. The unit of rate constant for a first order reaction is
Answer : Option C
Explaination / Solution:
Unit of k = mol L−1s−1/ mol L−1
