BIHAR CGL PRE SCIENCE QUIZ-3

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Question 1:

Which of the following is the main thinking part of the human brain?

Question 2:

What is Ecotone?

Question 3:

The gastric juice in the stomach contains- ?

Question 4:

What was the drawback of Rutherford model of an atom?

  1. Rutherford did not specify the number of orbits 
  2. Rutherford did not specify the number of electrons in each orbit
  3. He was failed to explain the stability of an atom
  4. He state that all the mass of an atom is concentrated in the nucleus of an atom

Question 5:

The presence of sulphur in gun powder -

Question 6:

On descending a group, the electropositive character of elements-

Question 7:

Sound waves of frequency above 20KHz are known as - 

Question 8:

Which of the following is the CGS unit of work? 

Question 9:

Which of the following is not a transverse wave?

Question 10:

The work done is zero if there is no ________?