NTPC CBT-2 Chemistry Quiz - 70

Attempt now to get your rank among 6 students!

Question 1:

Ant sting cause red, swollen mark on the skin that may be very itchy. This is due to injection of-

Question 2:

An aqueous solution turns blue litmus solution red. Excess addition of which of the following solution would reverse the change?

Question 3:

Baking soda is added for faster cooking. The raw material used for the formation of baking soda is 

Question 4:

Rust is the result of oxidation reaction when the iron (Fe) particles have been exposed to oxygen and moisture. It is chemically known as

Question 5:

Among which of the following gases can be used for preventing the oily food items from oxidation?

  1. Oxygen gas
  2. Nitrogen 
  3. Helium
  4. Carbon dioxide

Question 6:

In the decomposition reaction of lead (II) nitrate , the coefficient of oxygen gas is

Question 7:

Which of the following indicators turns blue in the basic solution?

Question 8:

What product will form when calcium oxide reacts with water?

Question 9:

Copper coin is kept immersed in silver nitrate solution for some time. What change will take place in colour of the solution?

Question 10:

The accidental touch of Nettle leaves creates a burning sensation, which is due to inject of

serach-testwale
x