BPSC PRELIMS BOOSTER SCIENCE QUIZ- 7

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Question 1:

When a base reacts with a metal , which one of the following gas is usually liberated?

Question 2:

What will be the reaction when base dissolves in water ?

Question 3:

Which of the following statement is incorrect about bases?

Question 4:

The life of aquatic animal is in danger if pH of the water is-

Question 5:

25 mL of water is added in an acidic solution . This result in 

Question 6:

Which one of the following is the correct sequence of change in colours when a turmeric stain on white clothes is scrubbed by soap and then washed with water?

Question 7:

Which one of the following was the first mineral acid discovered?

Question 8:

Which one of the following is an organic acid?

Question 9:

Which one of the following will NOT produce carbon dioxide on reacting with an aqueous solution of hydrochloric acid?

Question 10:

Which one of the following gives highest amount of OH- ions?