RRB GROUP D Chemistry Quiz - 5

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Question 1:

At what temperature gypsum heated to form plaster of paris ?

Question 2:

Which of the following are the ingredients of gun-metal?

Question 3:

Ultrasonic jets cause pollution by diluting-

Question 4:

Newland law of octaves is applicable upto

Question 5:

 Which one of the following is the chemical formula of Limestone  ?

Question 6:

Structural formula of which of the following compound is CH3C≡CCH3 :-

Question 7:

Why dose a turmeric stain turn red (on white clothes) when it is washed with soap?

Question 8:

Incomplete combustion of a fuel gives poisonous_________gas ?

Question 9:

Which of the following is not the postulates of the Thomson model of an atom ?

Question 10:

Which of the following is the example of aerosol ?

  1. Clouds
  2. Milk
  3. Face cream
  4. Smoke