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Acid Base and Salts Class 10 mcq. We covered all the Acid Base and Salts Class 10 mcq in this post for free so that you can practice well for the exam.
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mcq on Acid Base and Salts for Class 10 Students
What gas is released when vinegar is mixed with baking soda?
a) Hydrogen
b) Oxygen
c) Carbon dioxide
d) Nitrogen dioxide
Option c – Carbon dioxide
Which gas is given off when dilute hydrochloric Acid reacts with sodium sulphite?
a) Carbon dioxide
b) Hydrogen
c) Sulphur dioxide
d) Sulphur trioxide
Option c – Sulphur dioxide
When lemon juice is added to milk: (i) It becomes sour (ii) No change occurs (iii) Its properties are altered (iv) Its properties remain unchanged. Which of the statements are correct?
a) ii & iii
b) i & ii
c) i & iii
d) i only
Option c – i & iii
Identify the strong Base from the following
a) Ammonium hydroxide (NH₄OH)
b) Sodium hydroxide (NaOH)
c) Water (H₂O)
d) Sulfuric Acid (H₂SO₄)
Option b – Sodium hydroxide (NaOH)
Acids taste …… whereas Bases taste ……
a) Sweet, salty
b) Sweet, sour
c) Sour, salty
d) Sour, bitter
Option d – Sour, bitter
A Base that dissolves in water is called a(n)
a) Soluble Base
b) Alkali
c) Acid
d) Oxide
Option b – Alkali
Choose the correct statement(s): (i) Most Acids dissolve in water (ii) Acids react with metal oxides or hydroxides to form Salts and water (iii) Acids combine with metal carbonates to produce Salt, hydrogen gas, and water (iv) Acetic Acid is used to preserve Food
a) i & ii only
b) iii & iv
c) i, ii & iv
d) All the above
Option c – i, ii & iv
Acidic soil, which hampers plant growth, can be neutralised using
a) Ammonium hydroxide (NH₄OH)
b) Calcium oxide (CaO)
c) Sodium hydroxide (NaOH)
d) Magnesium hydroxide (Mg(OH)₂)
Option b – Calcium oxide (CaO)
What type of Acid is found in an ant’s sting?
a) Acetic Acid
b) Formic Acid
c) Lactic acid
d) Ascorbic acid
Option b – Formic acid
The natural indicator litmus is derived from
a) Lichens
b) Earthworms
c) Ants
d) Algae
Option a – Lichens
The nature of industrial waste is typically
a) Acidic
b) Basic
c) Neutral
d) Both acidic and basic
Option a – Acidic
Why are Bases stored in glass containers?
a) They produce OH⁻ ions in water
b) They conduct Electricity
c) They are corrosive
d) They have a slippery feel
Option c – They are corrosive
Which of the following statements about Bases is incorrect?
a) Bases release hydroxide ions in water
b) Bases feel slippery to the touch
c) They are highly corrosive
d) Basic solutions do not conduct Electricity
Option d – Basic solutions do not conduct Electricity
Which of the following statements is accurate?
a) Acids taste bitter
b) Bases taste sour
c) Acid-Base reactions release Heat
d) Acid-Base reactions absorb Heat
Acid rain can damage
a) Marble buildings
b) Historical sites
c) Aquatic ecosystems
d) All of these
Option d – All of these
What is the typical pH range of the human body?
a) 6.0 to 6.5
b) 5.5 to 5.8
c) 7.0 to 7.8
d) 7.0 to 11.0
Option c – 7.0 to 7.8
What does calamine lotion primarily contain?
a) Zinc hydroxide
b) Zinc carbonate
c) Sodium hydrogen carbonate
d) Magnesium hydroxide
Option b – Zinc carbonate
A soil sample is mixed with water and left to settle. The clear liquid turns pH paper yellow-orange. Which of these would shift the paper’s colour to greenish-blue?
a) Lemon juice
b) Vinegar
c) Common Salt
d) An antacid
Option d – An antacid
If concentrated acid accidentally spills on a student’s hand, what should be the immediate response?
a) Rinse with a saline solution
b) Wash thoroughly with water and apply baking soda paste
c) Wash and apply sodium hydroxide solution
d) Use a strong Base to neutralize the acid
Option b – Wash thoroughly with water and apply baking soda paste
Toothpastes help prevent tooth decay because they are generally
a) Acidic
b) Neutral
c) Basic
d) Corrosive
Option c – Basic
Which of the following statements is incorrect?
a) China rose acts as a natural indicator
b) Continuous farming makes the soil acidic
c) Stings of ants or bees contain acetic acid
d) Industrial waste is usually acidic
Option c – Stings of ants or bees contain acetic acid
Why is ammonium hydroxide referred to as a commonly used alkali?
a) It’s a weak base and insoluble in water
b) It’s a weak base that dissolves in water
c) It’s a strong base that doesn’t dissolve in water
d) It’s a strong base and water-soluble
Option b – It’s a weak base that dissolves in water
Which indicator changes to reddish-brown when added to soap solution?
a) Litmus
b) China rose
c) Turmeric powder
d) None of these
Option c – Turmeric powder
Identify the strong acid from the following
a) Acetic acid
b) Citric acid
c) Nitric acid
d) Tartaric acid
Option c – Nitric acid
Which acid is responsible for causing indigestion?
a) Citric acid
b) Oxalic acid
c) Acetic acid
d) Hydrochloric acid
Option d – Hydrochloric acid
What is referred to as “dead burnt plaster”?
a) Quick lime
b) Slaked lime
c) Limestone
d) Gypsum
Option b – Slaked lime
Which pair represents chemically identical substances?
a) Lime water and milk of lime
b) Dead burnt plaster and gypsum
c) Both the above
d) None of these
Option a – Lime water and milk of lime
What is the classification of baking powder?
a) A mixture
b) A compound
c) An element
d) A Salt
Option a – A mixture
What is the chemical name of bleaching powder?
a) Calcium chloride
b) Calcium oxychloride
c) Calcium chloroxide
d) None of the above
Option b – Calcium oxychloride
Which of the following is a hydrated compound?
a) Blue vitriol
b) Baking soda
c) Washing soda
d) Epsom Salt
Option b – Baking soda
Which substance does not produce carbon dioxide when treated with dilute sulfuric acid?
a) Marble
b) Limestone
c) Lime
d) Baking soda
Option c – Lime
What happens when hydrogen chloride gas is bubbled through water?
a) It does not ionise in solution
b) It dissociates into ions
c) It produces both hydrogen and hydroxyl ions
d) None of the above
Option b – It dissociates into ions
Which indicator remains colourless in an acidic solution?
a) Methyl orange
b) Turmeric powder
c) Litmus
d) Phenolphthalein
Option d – Phenolphthalein
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