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
When vinegar reacts with baking soda the gas evolved is
(a) hydrogen
(b) oxygen
(c) carbon dioxide
(d) nitrogen dioxide
Option c – carbon dioxide
Which of the following gas is evolved on the reaction of dilute hydrochloric acid with sodium sulphite?
(a) Carbon dioxide
(b) Hydrogen
(c) Sulphur dioxide
(d) Sulphur trioxide
Option c – Sulphur dioxide
When a few drops of lemon are mixed with milk (i) it turns sour (ii) no change takes place (iii) the properties of milk are changed. (iv) properties of milk remain the same Which of the above statements is/are correct?
(a) (ii) & (iii)
(b) (i) & (ii)
(c) (i) & (iii)
(d) (i) only
Option c – (i) & (iii)
Which of the following is a strong base?
(a) Ammonium hydroxide (NH4OH)
(b) Sodium hydroxide (NaOH)
(c) Water (H₂O)
(d) Sulfuric acid (H₂SO4)
Option b – Sodium hydroxide (NaOH)
Acids are…… in taste while bases are ………. in taste
(a) sweet, salty
(b) sweet, sour
(c) sour, salty
(d) sour, bitter
Option d – sour, bitter
A base which dissolves in water is called
(a) soluble base
(b) alkali
(c) acid
(d) oxide
Option b – alkali
Choose the correct statement(s) (i) Most of the acids are water soluble (ii) Acids react with metallic oxides and hydroxides to form metallic salt and water only. (iii) Acids react with metallic carbonates to form metallic salt and hydrogen gas and water (iv) Acetic acid is used as a food preservative
(a) (i) & (ii) only
(b) (iii) & (iv)
(c) (i), (ii) & (iv)
(d) all the above
Option c – (i), (ii) & (iv)
The acidic soil which is not good for the healthy growth of plants is neutralized by
(a) ammonium hydroxide (NH4OH)
(b) calcium oxide (CaO)
(c) sodium hydroxide (NaOH)
(d) magnesium hydroxide (Mg (OH)₂
Option b – calcium oxide (CaO)
The acid contained in the sting of an ant is ……
(a) acetic acid
(b) formic acid
(c) lactic acid
(d) ascorbic acid
Option b – formic acid
Natural indicator litmus is extracted from
(a) lichens
(b) earthworms
(c) ants
(d) algae
Option a – lichens
Industrial waste is in nature
(a) acidic
(b) basic
(c) neutral
(d) both (a) & (b)
Option a – acidic
Why bases are kept in glass bottles?
(a) Bases produce OH ions in aqueous solutions
(b) Basic solutions are conducted in nature
(c) Bases are corrosive in nature
(d) Basis has a soapy texture
Option c – Bases are corrosive in nature
Which of the following statement regarding bases is false?
(a) Bases produce hydroxide ions when dissolved in water
(b) Bases are soapy to touch
(c) Bases are extremely corrosive in nature
(d) Basic solutions are non-conducting in nature
Option d – Basic solutions are non-conducting in nature
Which of the following statement is true?
(a) Acids are bitter in taste
(b) Bases are sour in taste
(c) The reaction between an acid and a base is an exothermic reaction
(d) The reaction between an acid and a base is an endothermic reaction.
Option c – The reaction between an acid and a base is an exothermic reaction
Which of the following acid rain has adverse effects?
(a) Marble structures
(b) Historical monuments
(c) Aquatic life
(d) All of these
Option d – All of these
the pH of the human body varies within the range of
(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
Calamine solution contains
(a) zinc hydroxide
(b) zinc carbonate
(c) sodium hydrogen carbonate
(d) magnesium hydroxide
Option b – zinc carbonate
A sample of soil is mixed with water and allowed to settle. The clear supernatant solution turns the pH paper yellowish-orange. Which of the following would change the colour of this pH paper to greenish-blue?
(a) Lemon juice
(b) Vinegar
(c) Common salt
(d) An antacid
Option d – An antacid
If a few drops of concentrated acid accidentally spill over the hand of a student, what should be done?
(a) Wash the hand with saline solution
(b) Wash the hand immediately with plenty of water and apply a paste of sodium hydrogen carbonate
(c) After washing with plenty of water apply a solution of sodium hydroxide to the hand
(d) Neutralise the acid with a strong alkali
Option b – Wash the hand immediately with plenty of water and apply a paste of sodium hydrogen carbonate
To protect against tooth decay we are advised to brush our teeth regularly. The nature of the toothpaste commonly used is
(a) acidic
(b) neutral
(c) basic
(d) corrosive
Option c – basic
Which of the following statement is false?
(a) China rose is a natural indicator
(b) Repeated cultivation by farmers makes the soil acidic
(c) Ant or bee sting contains acetic acid
(d) Majorly factory waste is acidic in nature
Option c – Ant or bee sting contains acetic acid
Which of the following is the best explanation of the statement; Ammonium hydroxide is a commonly used alkali
(a) It is a weak base insoluble in water
(b) It is a weak base soluble in water
(c) It is a strong base insoluble in water
(d) It is a strong base soluble in water
Option b – It is a weak base soluble in water
An indicator that turns reddish-brown when dissolved in soap solution is
(a) litmus
(b) china rose
(c) turmeric powder
(d) None of these
Option c – turmeric powder
Which of the following is a strong acid :
(a) Acetic acid
(b) Citric acid
(c) Nitric acid
(d) Tartaric acid
Option c – Nitric acid
Presence of which of the following acid causes indigestion :
(a) Citric acid
(b) Oxalic acid
(c) Acetic acid
(d) Hydrochloric acid
Option d – Hydrochloric acid
Which of the following is known as dead burnt plaster?
(a) Quick lime
(b) Slaked lime
(c) Limestone
(d) Gypsum
Option b – Slaked lime
Which of the following pairs of substances are chemically the same?
(a) Lime water and milk of lime
(b) Dead burnt plaster and gypsum
(c) Both the above
(d) None of the above is correct
Option a – Lime water and milk of lime
Baking powder is
(a) a mixture
(b) a compound
(c) an element
(d) a salt
Option a – a mixture
The chemical name of bleaching powder is
(a) calcium chloride
(b) calcium oxychloride
(c) calcium chloroxide
(d) none of these
Option b – calcium oxychloride
Which of the following is a hydrated salt?
(a) Blue vitriol
(b) Baking soda
(c) Washing soda
(d) Epsom salt
Option b – Baking soda
Select the one that does not give CO₂(g) when treated with dil H2SO4.
(a) Marble
(b) Limestone
(c) Lime
(d) Baking soda
Option c – Lime
When HCl (g) is passed through water, it
(a) does not ionise in solution
(b) ionises in solution
(c) gives both hydrogen ions and hydroxyl ions in solution.
(d) None of the above is correct
Option b – ionises in solution
Which of the following indicators is colourless in the acidic medium?
(a) Methyl orange
(b) Turmeric powder
(c) Litmus
(d) Phenolphthalein
Option d – Phenolphthalein
We covered all the acid base and salts class 10 MCQ above in this post for free so that you can practice well for the exam.
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