WorksheetsY10 Periodic Table 3 - Group 1
Total questions: 10
Worksheet time: 5mins
Which is the most reactive of these Group 1 metals?
Lithium
Sodium
Potassium
Which is the least reactive of these Group 1 metals?
Lithium
Sodium
Potassium
What are the products of the reaction between lithium and water?
Lithium oxide and hydrogen
Lithium hydroxide and oxygen
Lithium hydroxide and hydrogen
Lithium alkali and gas
What are the products of the reaction between potassium and water?
Potassium oxide and hydrogen
Potassium hydroxide and oxygen
Potassium hydroxide and hydrogen
Potassium alkali and gas
Which of the following observations will you make when lithium, sodium or potassium is added to water?
lilac flame
the metals sink to the bottom of the container
the metals move on the surface of the water
a squeaky pop is heard
Which of the following is the correct, balanced equation for the reaction of sodium with water?
Na + H2O → H2 + NaOH
Na + H2O → H2 + NaO
2Na + 2H2O → H2 + 2NaOH
Na + H2O → O2 + NaH2
What is the formula for lithium hydroxide?
Li2OH
Li(OH)2
Li2O
Which of the following observations is NOT made when sodium reacts with water?
The metal moves on the surface of the water
The metal disappears
There is a lilac flame
There is effervescence (of hydrogen gas)
What is the test for hydrogen gas?
Lighted splint burns with a squeaky pop
Glowing splint re-lights
Bubble gas through limewater and it turns cloudy
Damp litmus paper is bleached
Universal indicator turns from green to blue if it is placed into the solution formed when lithium reacts with water. Why?
the hydrogen produced is alkaline
the lithium hydroxide produced is acidic
the lithium hydroxide produced is alkaline
the hydrogen produced is acidic
