Exploring Halogens: Properties and Reactions

Which of the following elements is not a halogen?

• Fluorine

• Chlorine

• Oxygen

• Iodine

What is the general trend in reactivity as you move down the halogen group in the periodic table?

• Reactivity increases

• Reactivity decreases

• Reactivity remains the same

• Reactivity first increases then decreases

Which halogen is the most reactive?

• Iodine

• Bromine

• Chlorine

• Fluorine

In a displacement reaction, which halogen can displace bromine from potassium bromide?

• Iodine

• Chlorine

• Astatine

• None of the above

What is the colour of chlorine gas?

• Colourless

• Yellow-green

• Brown

• Purple

Which of the following is a common use of iodine?

• Disinfectant

• Refrigerant

• Fuel

• Fertiliser

What is the state of bromine at room temperature?

• Solid

• Liquid

• Gas

• Plasma

Which halogen is used in the production of Teflon?

• Fluorine

• Chlorine

• Bromine

• Iodine

What safety precaution should be taken when handling chlorine gas?

• Use a fire extinguisher

• Wear protective gloves and goggles

• Keep it in a dark place

• Store it in a plastic container

Which halogen is commonly used in water purification?

• Iodine

• Bromine

• Chlorine

• Fluorine