Reactions of Group 1 Metals with Water

What is produced when Group 1 metals react with water?

• Alkali and oxygen gas

• Alkali and hydrogen gas

• Acid and hydrogen gas

• Acid and oxygen gas

Which gas is released during the reaction of Group 1 metals with water?

• Carbon dioxide

• Hydrogen

• Nitrogen

• Oxygen

Which of the following metals float on water due to their density?

• Rubidium

• Cesium

• Lithium

• Francium

What happens to the density of lithium, sodium, and potassium compared to water?

• They are denser than water

• They have the same density as water

• They are less dense than water

• They do not interact with water

What sound is produced when hydrogen gas is tested with a lit wooden splinter?

• A hissing sound

• A pop sound

• A crackling sound

• No sound

What color does the universal indicator turn when the solution is neutral?

• Blue

• Yellow

• Green

• Red

At what pH does the universal indicator show a purple color?

• pH 1

• pH 7

• pH 9

• pH 14

What is the pH range of a solution when the universal indicator turns blue?

• pH 1-3

• pH 5-6

• pH 9-10

• pH 13-14

What is the behavior of sodium when it reacts with water?

• It remains unchanged

• It floats and moves swiftly

• It sinks and reacts slowly

• It dissolves without reaction

What flame color is observed when potassium reacts with water?

• Purple

• Green

• Blue

• Red