UPSC Prelims Full Length Test - 100

Which of the following is / are correct statements with respect to Copper (Cu), Silver (Ag) and Gold (Au)?
  1. All of them are can be found naturally in their elemental state
  2. All of them belong to same group in the periodic table
Select the correct option from the codes given below:
Consider the following: 
  1. Sodium 
  2. Potassium 
Which among the above plays vital role in restoring the body fluid?
Which of the following is / are unconventional sources of natural gas?
  1. Shale Gas
  2. Coal bed methane
  3. Tight Sand stones
  4. Methane Hydrates
Select the correct option from the codes given below:
Consider the following Statements:
  1. Radon is the heaviest gas.
  2. Astatine is the rarest element on the earth.
  3. Graphite which is a non-metal is also an electrical conductor.
Which among the above Statement(s) is/are correct?
Consider the following differences between Hydrogen and Helium gases:
  1. While Helium is a non-flammable gas, Hydrogen is a flammable gas
  2. Helium is lighter than Hydrogen gas
Which of the above statements is/are correct?

Category: UPSC

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