Chapter-15 Chemistry in Everyday Life — Online MCQ Test
SCIENCE · Samacheer Kalvi 8th · Tamil Nadu State Board
Practice Chapter-15 Chemistry in Everyday Life with a free chapter-wise online MCQ test.
This chapter covers: medicine combustion antacid Explains the applications of chemistry in medicines fuels and household chemicals.
AI-generated questions from basic to board-exam level, with instant results and explanations.
Chapter-15 Chemistry in Everyday Life — Important Questions & Answers
Which of the following is commonly used as an antacid?
- A. Sodium chloride
- B. Magnesium hydroxide
- C. Calcium carbonate
- D. Copper sulphate
Answer: B. Magnesium hydroxide
Magnesium hydroxide, also called milk of magnesia, neutralizes excess stomach acid and is used as an antacid.
Magnesium hydroxide, also called milk of magnesia, neutralizes excess stomach acid and is used as an antacid.
What is the main purpose of an antacid?
- A. To increase body temperature
- B. To neutralize excess acid in the stomach
- C. To cure bacterial infections directly
- D. To dissolve food quickly
Answer: B. To neutralize excess acid in the stomach
Antacids work by neutralizing excess hydrochloric acid in the stomach, giving relief from acidity.
Antacids work by neutralizing excess hydrochloric acid in the stomach, giving relief from acidity.
A person feels burning sensation in the stomach after eating spicy food. Which medicine category can give quick relief?
- A. Antacid
- B. Analgesic
- C. Antiseptic
- D. Vaccine
Answer: A. Antacid
Antacids are used to neutralize excess stomach acid and reduce acidity-related discomfort.
Antacids are used to neutralize excess stomach acid and reduce acidity-related discomfort.
A student says, 'All medicines are safe if taken in any amount.' Which is the best response?
- A. True, medicines are always safe
- B. False, medicines must be taken in the correct dose
- C. True, because more medicine works faster
- D. False, because medicines cannot treat diseases
Answer: B. False, medicines must be taken in the correct dose
Medicines can be harmful if taken in the wrong dose, so they should always be used carefully.
Medicines can be harmful if taken in the wrong dose, so they should always be used carefully.
Which option best explains why antacids should not be taken unnecessarily?
- A. They may increase stomach acid
- B. They may disturb the normal acid balance in the stomach
- C. They are only for fever
- D. They are the same as antibiotics
Answer: B. They may disturb the normal acid balance in the stomach
Antacids are meant for excessive acidity. Unnecessary use may disturb the normal working of the digestive system.
Antacids are meant for excessive acidity. Unnecessary use may disturb the normal working of the digestive system.