Acids, Bases & Salts

Acids, Bases and Salts Worksheet-1

Multiple-Choice Question:

1. Plants in my garden were not bearing flowers and appeared dull despite all the care I took. I treated the soil solution with litmus and it turned red. What should I add to the soil to ensure better growth of plants?

(A) Manure                                    (B) Slaked lime

(C) Lemon juice                            (D) Soap solution

2. An example of an acid derived from a mineral is:

(A) Citric Acid                               (B) Nitric Acid

Acids, Bases and Salts Worksheet-2

1. Based on which of the following changes is an indicator useful?

(A) Colour                                          (B) Physical state    

(C) Temperature                               (D) Pressure

2. Why are acids always stored in glass containers and not in metallic ones?

(A) Glass containers are transparent        

(B) Glass containers are cheaper

Acids, Bases and Salts Worksheet-3

1. What must be administered to someone who has been stung by an ant?

(A) Sodium hydrogen carbonate

(B) Water

(C) Vinegar

(D) None of these

2. The following figure shows the colour changes in test tubes I, II and III when china rose indicator is added to them. The respective solutions in test tubes I, II and III are

(A) I: Sugar solution; II: Lime water; III: Lime juice

(B) I: Sugar solution; II: Lime juice; III: Lime water