This chapter is one of the most important in Class 10 Chemistry because it connects everyday substances like lemon juice, curd, soap, medicines, and cleaning agents with core scientific ideas such as acids, bases, indicators, salts, pH, and neutralisation. It is frequently tested in CBSE board exams because it includes both conceptual understanding and application-based questions.
For board preparation, this chapter is highly scoring since many questions are direct, assertion-based, or case-based in nature. A clear understanding of the properties of acids and bases, common salts, pH scale, water of crystallisation, and the uses of important compounds like washing soda, baking soda, and plaster of Paris can help students solve questions accurately and quickly.
30
Minutes
30
Questions
1 / -0
Marking
Q1. Which of the following is a mineral acid?
Acetic acid
Citric acid
Hydrochloric acid
Tartaric acid
Q2. Which indicator turns blue in a basic solution?
Litmus
Turmeric
Phenolphthalein
Methyl orange
Q3. The pH of a neutral solution is:
0
7
14
10
Q4. Which gas is produced when an acid reacts with a metal?
Oxygen
Hydrogen
Nitrogen
Carbon dioxide
Q5. Which of the following is a base?
Q6. Which salt is used in baking?
Sodium chloride
Sodium hydrogen carbonate
Calcium carbonate
Potassium chloride
Q7. What is the colour of litmus in an acidic solution?
Blue
Green
Red
Colourless
Q8. Which acid is present in vinegar?
Citric acid
Acetic acid
Tartaric acid
Lactic acid
Q9. Which of the following is a weak acid?
Hydrochloric acid
Nitric acid
Sulphuric acid
Acetic acid
Q10. The pH of stomach acid is usually:
12 to 14
7
1 to 3
8 to 10
Q11. Which gas is released when sodium hydrogen carbonate reacts with dilute hydrochloric acid?
Oxygen
Hydrogen
Carbon dioxide
Nitrogen
Q12. What is the chemical formula of washing soda?
Q13. Which substance is used as an antacid?
Sodium hydroxide
Magnesium hydroxide
Hydrochloric acid
Carbonic acid
Q14. What is the colour of phenolphthalein in acid?
Pink
Blue
Colourless
Red
Q15. Which one is a strong base?
Ammonium hydroxide
Calcium hydroxide
Sodium hydroxide
Magnesium hydroxide
...and 15 more challenging questions available in the interactive simulator.