Acid, bases and salts Worksheet-4

Acid, bases and salts Worksheet-4

 

Multiple-Choice Question:

  1. ‘ Coke’ will change the colour of china rose petals to:

(A) Blue                (B) Dark pink       (C) Black              (D) Green

 

  1. A solution which does not change the colour of Litmus solution is ______ in nature.

(A) Acidic             (B) Basic               (C) Neutral

 

  1. The compounds produced on the reaction of acid and base are:

(A) Salt and small amount of base         

(B) Salt, water and small amount of acid

(C) Salt and water

(D) Water and small amount of acid

 

  1. Aditya added limewater to the toilet cleaner (acid).Will the reaction mixture be hot or cold?

(A) Hot                                              (B) Cold

 

  1. The burning sensation caused due to ant’s sting can be minimised by rubbing the sting area with:

(A) Lemon juice                               (B) Baking soda           

(C) Tomato slice                              (D) Neem leaf

 

  1. Common salt changes the colour of china rose to:

(A) Blue                (B) Dark pink       (C) Black              (D) No effect

 

Fill in the blanks:

  1. _______ is/are formed during a neutralization reaction. 

 

True/False

  1. Acids are bitter in taste.
  2. Bases are sour in taste.
  3. Acid turns blue litmus red.
  4. Tooth decay is caused by the presence of a base.
  5. Indicator is a substance which shows different colour with acids & bases.
  6. The reaction between hydrochloric acid & sodium hydroxide will form salt & water.

 

Answer key:

  1. (B)
  2. (C)
  3. (C)
  4. (A)
  5. (B)
  6. (D)
  7. Salt/Salts
  8. False
  9. False
  10. True
  11. False
  12. True
  13. True