Acids, Bases and Salts
8 minFull explanation, worked examples & memory tricks in the app
Kit Library / Science / Chemistry
⚡ Topic Learning KitAcids Bases Salts
English 25 leveled MCQs Free
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All 25 questions, laddered from warm-up to topper-level, each with its answer and the reasoning behind it.
Warm-up · 18 questions
Q1. Which of the following is a property of acids?
Beginner
A
They turn blue litmus red.
B
They turn red litmus blue.
C
They feel slippery to touch.
D
They have a bitter taste.
Answers and explanations are in the Veda app.
Q2. Which of the following is a strong base?
Beginner
A
Ammonium hydroxide
B
Sodium hydroxide
C
Acetic acid
D
Carbonic acid
Answers and explanations are in the Veda app.
Q3. What is the pH range of acidic solutions?
Beginner
A
0 to 7
B
Less than 7
C
7 to 14
D
Exactly 7
Answers and explanations are in the Veda app.
Q4. Which of the following is a natural indicator?
Beginner
A
Phenolphthalein
B
Universal indicator
C
Litmus
D
Methyl orange
Answers and explanations are in the Veda app.
Q5. Which acid is present in vinegar?
Beginner
A
Citric acid
B
Lactic acid
C
Acetic acid
D
Formic acid
Answers and explanations are in the Veda app.
Q6. What is the pH of a neutral solution?
Beginner
A
14
B
7
C
1
D
0
Answers and explanations are in the Veda app.
Q7. Bases turn red litmus paper blue.
Beginner
A
True
B
False
Answers and explanations are in the Veda app.
Q8. Acids taste sour and bases taste bitter.
Beginner
A
True
B
False
Answers and explanations are in the Veda app.
Q9. What is the chemical formula for hydrochloric acid?
Beginner
A
CH3COOH
B
H2SO4
C
NaOH
D
HCl
Answers and explanations are in the Veda app.
Q10. What is the pH of a basic solution?
Beginner
A
7
B
14
C
0-6
D
8-14
Answers and explanations are in the Veda app.
Q11. Which of the following is a property of bases?
Beginner
A
Produce hydrogen ions in solution
B
Turn blue litmus paper red
C
Taste sour
D
Feel slippery
Answers and explanations are in the Veda app.
Q12. What is the chemical formula for sodium hydroxide?
Beginner
A
NaCl
B
KOH
C
H2O
D
NaOH
Answers and explanations are in the Veda app.
Q13. Which of the following is a characteristic of acids?
Beginner
A
They feel slippery
B
They produce hydroxide ions in solution
C
They taste bitter
D
They turn blue litmus paper red
Answers and explanations are in the Veda app.
Q14. What is the chemical name of citric acid?
Beginner
A
Citric acid
B
Sulfuric acid
C
Phosphoric acid
D
Acetic acid
Answers and explanations are in the Veda app.
Q15. Which of the following is a common use of bases?
Beginner
A
Beverage production
B
Cleaning agents
C
Food preservation
D
Flavoring
Answers and explanations are in the Veda app.
Q16. What is the product formed when an acid reacts with a carbonate?
Beginner
A
Carbon dioxide
B
Water
C
Salt
D
Hydrogen gas
Answers and explanations are in the Veda app.
Q17. Which of the following is a natural source of an acid?
Beginner
A
Soap
B
Baking soda
C
Vinegar
D
Lemon juice
Answers and explanations are in the Veda app.
Q18. What is the chemical formula for sulfuric acid?
Beginner
A
H2SO4
B
HCl
C
NaOH
D
CH3COOH
Answers and explanations are in the Veda app.
Building up · 7 questions
Q19. Which gas is produced when an acid reacts with a metal?
Intermediate
A
Oxygen
B
Nitrogen
C
Carbon dioxide
D
Hydrogen
Answers and explanations are in the Veda app.
Q20. What is the product of the reaction between an acid and a base?
Intermediate
A
Salt and hydrogen
B
Base and water
C
Salt and water
D
Acid and salt
Answers and explanations are in the Veda app.
Q21. What is the chemical name of baking soda?
Intermediate
A
Sodium carbonate
B
Calcium carbonate
C
Sodium chloride
D
Sodium bicarbonate
Answers and explanations are in the Veda app.
Q22. Which of the following is a weak acid?
Intermediate
A
Hydrochloric acid
B
Acetic acid
C
Nitric acid
D
Sulphuric acid
Answers and explanations are in the Veda app.
Q23. Which of the following is a use of acids?
Intermediate
A
In making soaps
B
In car batteries
C
In antacids
D
In cleaning products
Answers and explanations are in the Veda app.
Q24. What is the reaction called when an acid reacts with a base?
Intermediate
A
Oxidation
B
Neutralization
C
Combustion
D
Reduction
Answers and explanations are in the Veda app.
Q25. Which of the following is a strong acid?
Intermediate
A
Hydrochloric acid
B
Citric acid
C
Carbonic acid
D
Acetic acid
Answers and explanations are in the Veda app.
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