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WorksheetsACIDS BASES AND SALTS
Total questions: 15
Worksheet time: 37mins
An aqueous solution turns red litmus solution blue. Excess addition of which of the following solution would reverse the change?
Baking powder
Ammonium hydroxide solution
Hydrochloric acid
Lime
Tooth enamel is made up of -
Sodium hydroxyzinctite
Potassium bicarbomagnetite
Calcium hydroxyapatite
Calcium Oxyzinctite
Identify the element –
a) It is a white translucent solid.
b) It readily reacts with water and produces an alkaline solution.
c) It is stored in kerosene
Sodium
Calcium
Aluminium
Phosphorus
Lime water reacts with chlorine to give -
bleaching powder
baking powder
baking soda
washing soda
Tomato is a natural source of which acid?
Acetic acid
Citric acid
Tartaric acid
Oxalic acid
What is formed when zinc reacts with sodium hydroxide?
Zinc hydroxide and sodium
Sodium zincate and hydrogen gas
Zinc oxide and hydrogen gas
Sodium zincate and water
In terms of acidic strength, which one of the following is in the correct increasing order?
Water < Acetic acid < Hydrochloric acid
Water < Hydrochloric acid < Acetic acid
Acetic acid < Water < Hydrochloric acid
Hydrochloric acid < Water < Acetic acid
When hydrogen chloride gas is prepared on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to -
Absorb the evolved gas
Moisten the gas
Absorb moisture from the gas
Absorb Cl– ions from the evolved gas
What are Bases?
Bases are substances that are bitter in taste, feel soapy when touched and are acidic in nature.
Bases are substances that are sour in taste, feel soapy when touched and are basic in nature.
Bases are substances that are bitter in taste, feel soapy when touched and are basic in nature.
Acids are substances that are bitter in taste, feel soapy when touched and are basic in nature.
What are acids?
Acids are substances that taste sweet, can dissolve metals (depending on the type of acid) and are acidic in nature.
Acids are substances that taste sour, can dissolve metals (depending on the type of acid) and are acidic in nature.
Acids are substances that taste sour, can dissolve metals (depending on the type of acid) and are basic in nature.
