Acid, bases and salts Worksheet-1

Acid, bases and salts Worksheet-1

 

Multiple-Choice Question:

  1. ______ feels slippery to touch.

(A) Acid                                             (B) Base or alkali

(C) Salt                                              (D) All of these

 

  1. Lemon juice turns the colour of litmus from purple to:

(A) Red                 (B) Blue                (C) Green             (D) Yellow

 

  1. Litmus is extracted from:

(A) Algae              (B) Fungi              (C) Lichens           (D) None of these

 

  1. Lime water changes the colour of litmus paper to:

(A) Blue                (B) Red                 (C) Yellow            (D) Green

 

  1. We use Colin to clean the mirrors & glasses. It will change the colour of litmus paper to:

(A) Blue                (B) Red                 (C) Yellow            (D) Green

 

  1. Your mom uses Surf excel to clean the clothes. What do you think is it acidic or basic or neutral in nature?

(A) Acidic             (B) Basic               (C) Neutral          (D) None of these

 

  1. Curd changes the colour of litmus paper to:

(A) Blue                (B) Red                 (C) Yellow            (D) Green

 

  1. Citrus juice changes the colour of china rose to:

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

 

  1. Baking powder solution changes the colour of china rose to:

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

 

  1. Distilled water is _____ in nature.

(A) Acidic             (B) Basic               (C) Neutral          (D) None of these

 

Answer Key:

  1. (B)
  2. (A)
  3. (C)
  4. (A)
  5. (A)
  6. (B)
  7. (B)
  8. (B)
  9. (D)
  10. (C)