RRB GROUP D Chemistry Quiz - 63

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Question 1:

Which of the following pair has same number of moles ?

  1. 32 g of sulphur 
  2. 16 g of oxygen atoms 
  3. 84 g of nitrogen gas
  4. 36 g of water

Question 2:

What is the physical state of water at 298 K?

Question 3:

Which of the following vitamins stored in liver and adipose tissues ?

  1. Vitamin A
  2. Vitamin B
  3. Vitamin C
  4. Vitamin D

Question 4:

According to de Broglie theory , if the velocity of particle is zero then wavelength is 

Question 5:

The normal concentration of citric acid when 25.00 mL citric acid solution is titrated with 28.12 mL of 0.1718 N KOH solution is 

Question 6:

Which of the following metals will melt if you keep it on your palm?

Question 7:

Which of the following metal is used for decorative electroplating?

Question 8:

The froth flotation method is used for the concentration of which of the following ore?

Question 9:

In saturated hydrocarbons:

Question 10:

When a molecule of lead nitrate is heated, then: