Everyday Chemistry — Set 4
Chemistry · रोजमर्रा का रसायन · Questions 31–40 of 50
Which chemical is used as the electrolyte in a common car battery?
Correct Answer: D. Sulfuric Acid
• **Sulfuric Acid** = is commonly used in practical applications. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: A: different chemical category; B: different chemical category; C: different chemical category.
Which of the following is the main constituent of 'Natural Gas'?
Correct Answer: D. Methane
• **Methane** = serves as the primary component or element. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: A: incorrect choice for stated use; B: incorrect choice for stated use; C: incorrect choice for stated use.
Which gas is used in fire extinguishers because it does not support combustion?
Correct Answer: D. Carbon Dioxide
• **Carbon Dioxide** = is used for its specific properties and applications. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: A: incorrect choice for stated use; B: incorrect choice for stated use; C: incorrect choice for stated use.
Which chemical is commonly known as 'Epsom Salt'?
Correct Answer: C. Magnesium Sulfate
• **Magnesium Sulfate** = is commonly used in practical applications. • **Chemical properties** — possesses specific reactivity and behavior. • 💡 Wrong-option analysis: A: chemical compound but different type; B: chemical compound but different type; D: chemical compound but different type.
Which substance is used to make the 'heads' of safety matches?
Correct Answer: A. Potassium Chlorate
• **Potassium Chlorate** = is used for its specific properties and applications. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: B: incorrect choice for stated use; C: chemical compound but different type; D: chemical compound but different type.
Which acid is found in citrus fruits like lemons and oranges?
Correct Answer: B. Citric Acid
• **Citric Acid** = is the correct answer to this question. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: A: different chemical category; C: different chemical category; D: different chemical category.
Which chemical is used in the manufacturing of soaps?
Correct Answer: C. Sodium Hydroxide
• **Sodium Hydroxide** = is used for its specific properties and applications. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: A: chemical compound but different type; B: chemical compound but different type; D: incorrect choice for stated use.
Which form of carbon is used as a adsorbent to remove impurities from water?
Correct Answer: A. Activated Charcoal
• **Activated Charcoal** = is the correct answer to this question. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: B: incorrect choice for stated use; C: incorrect choice for stated use; D: incorrect choice for stated use.
Which chemical compound is the primary component of pearls?
Correct Answer: D. Calcium Carbonate
• **Calcium Carbonate** = is the primary chemical component. • **Chemical properties** — possesses specific reactivity and behavior. • 💡 Wrong-option analysis: A: chemical compound but different type; B: chemical compound but different type; C: chemical compound but different type.
Which chemical is commonly used to disinfect drinking water in city supplies?
Correct Answer: A. Bleaching Powder
• **Bleaching Powder** = is used for its specific properties and applications. • **Permanence** — creates water-resistant stains on skin that last for days. • 💡 Wrong-option analysis: B: incorrect choice for stated use; C: incorrect choice for stated use; D: incorrect choice for stated use.