Electroysis

How does the amount of electricity applied affect the rate of the electrolysis reaction?

• Electricity has no effect on the reaction rate
• More electricity increases the reaction rate
• Less electricity increases the reaction rate
• More electricity slows down the reaction

What is the primary purpose of electrolysis?

• To heat water for cooking
• To create electricity from chemical reactions
• To break chemical bonds using electricity
• To purify water by boiling

Why is salt added to water in the electrolysis experiment?

• To increase its conductivity for electrolysis
• To increase the water's boiling point
• To prevent the water from freezing
• To make the water taste better

Which type of salt is recommended for the electrolysis experiment?

• Rock salt
• Table salt (NaCl)
• Kosher salt (NaCl)
• Sea salt

Why is distilled water preferred over tap water in the electrolysis experiment?

• It tastes better
• It is cheaper than tap water
• It has a higher boiling point
• It avoids impurities that could interfere with the experiment

Which of the following is NOT a recommended safety equipment for the electrolysis experiment?

• Apron or lab coat
• Goggles
• Thick rubber gloves
• Short-sleeved shirt

What is the ideal ratio of salt to water for the electrolysis solution?

• 20% salt and 80% water
• 15% salt and 85% water
• 10% salt and 90% water
• 5% salt and 95% water

What gases are produced during the electrolysis reaction?

• Methane and oxygen
• Hydrogen and chlorine
• Carbon dioxide and hydrogen
• Oxygen and nitrogen

What is a potential hazard associated with chlorine gas produced during electrolysis?

• It can burn skin if inhaled
• It is harmless and non-toxic
• It is beneficial for respiratory health
• It can cause skin irritation

What happens to the water during the electrolysis reaction?

• It evaporates completely
• It freezes into ice
• It remains unchanged
• It turns from clear to yellow, then green and brown