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mcq on Acid Base and Salt. We covered all the mcq on Acid Base and Salt in this post for free so that you can practice well for the exam.
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mcq on Acid Base and Salt for Students
Who is credited with developing the pH scale?
a) Sorenson
b) Le-Blane
c) Svante Arrhenius
d) M. Lowry
Option a – Sorenson
What is another name for peroxydisulphuric Acid?
a) Caro Acid
b) Thiosulphurous Acid
c) Marshall Acid
d) Pyrosulphuric Acid
Option c – Marshall Acid
Choose the correct formula for oleum:
a) H₂S₂O₆
b) H₂S₂O₇
c) H₂S₂O₅
d) H₂S₂O₂
Option b – H₂S₂O₇
Based on the given traits, which group do the materials belong to? (i) They are corrosive (ii) They are widely used in industries (iii) They taste sour (iv) They release hydrogen or hydronium ions in water
a) Acids
b) Bases
c) Salts
d) Metals
Option a – Acids
The harmful effect of the Acid in insect stings such as bees or ants can be neutralized by a solution of:
a) Acetic acid
b) Formic acid
c) Sodium hydroxide
d) Sodium chloride
Option c – Sodium hydroxide
Why is the term “universal” used in universal indicator?
a) Because it is used globally
b) Because it has a universal appearance
c) Because it covers the full pH range
d) All the above
Option c – Because it covers the full pH range
The setting of plaster of Paris is sped up by sodium chloride and slowed down by ……….. Adding ……….. to it results in a harder form called ……….. When POP is heated to 200°C, it becomes anhydrous calcium sulphate, also known as ……….
a) Borax, gypsum, Keene’s cement, dead plaster
b) Alum, gypsum, Keene’s cement, dead plaster
c) Alum, Alum, Keene’s cement, dead plaster
d) Alum, Borax, Keene’s cement, Gypsum
Option c – Alum, Alum, Keene’s cement, dead plaster
What type of compound is produced in this reaction? Pb(OH)₂ + HNO₃ → Pb(OH)(NO₃) + H₂O
a) Acidic Salt
b) Basic Salt
c) Base
d) Acid
Option b – Basic Salt
What is the color of Copper (II) chloride formed in the reaction: CuO + 2HCl → CuCl₂ + H₂O?
a) Blue
b) Green
c) Blue-green
d) Both (a) and (b)
Option c – Blue-green
Which acid is utilized in lead-acid batteries?
a) H₂SO₄
b) HNO₃
c) HCl
d) CH₃COOH
Option a – H₂SO₄
A solution of compound ‘X’ reacts with ammonium carbonate to release an acidic gas. Identify compound ‘X’.
a) Calcium hydroxide
b) Ethanoic acid
c) Sodium hydroxide
d) Sulphuric acid
Option d – Sulphuric acid
When soil is mixed with water and the clear solution turns yellowish-orange on pH paper, which of the following can turn it greenish-blue?
a) Lemon juice
b) Vinegar
c) Common Salt
d) An antacid
Option d – An antacid
If concentrated acid spills on the skin accidentally, what is the best first aid action?
a) Rinse with saline solution
b) Wash thoroughly with water and apply sodium hydrogen carbonate paste
c) Wash and apply sodium hydroxide solution
d) Neutralize using a strong alkali
Option b – Wash thoroughly with water and apply sodium hydrogen carbonate paste
Apart from being used in Food, common Salt serves as a raw material for:
a) (i) and (ii)
b) (i), (ii) and (iv)
c) (i) and (iii)
d) (i), (iii) and (iv)
Option c – (i) and (iii)
Which statement correctly matches the following substances? (i) Lemon Juice (ii) Washing soda solution (iii) Toothpaste (iv) Stomach juices (v) Vinegar
a) i, iv, v are Acids and ii, iii are Bases
b) ii, iii are Acids; i, iv, v are Bases
c) i, iii, iv, v are Acids; ii is a Base
d) i, ii, iii are Acids; iv, v are Bases
Which of the following is not classified as a Salt?
a) Sodium chloride
b) Slaked lime
c) Lead sulphide
d) Zinc nitrate
Option b – Slaked lime
Identify the substance using these clues: (i) Sour taste (ii) Present in vinegar (iii) Used in pickles, jams, and sauces
a) Formic acid
b) Acetic acid
c) Lactic acid
d) Tartaric acid
Option b – Acetic acid
Which of these elements does not form Solid hydrogen carbonate?
a) Sodium
b) Potassium
c) Caesium
d) Lithium
Option d – Lithium
Given the atomic Mass of barium is 137.3, what is the equivalent weight of Ba(OH)₂?
a) 85.7
b) 137.3
c) 154.3
d) 171.3
Option a – 85.7
Which among the following is monatomic in nature?
a) Hydrogen
b) Sulphur
c) Phosphorus
d) Helium
Option d – Helium
Which compound, in Solid white form, absorbs moisture from air?
a) Sodium nitrate
b) Calcium chloride
c) Sodium carbonate
d) Calcium sulphate
Option b – Calcium chloride
Bagasse, a leftover from sugar production, is mainly used in making:
a) Glass
b) Paper
c) Rubber
d) Cement
Option b – Paper
Which of these compounds has equal Molecular weight and equivalent weight?
a) H₂SO₄
b) CaCl₂
c) Na₂SO₄
d) NaCl
Option d – NaCl
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