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WorksheetsAlkali metals
Total questions: 20
Worksheet time: 9mins
Which group of the periodic table are alkali metals found in?
Group 1
Group 2
Group 7
Group 8
Which of the followings is the most reactive alkali metal in water?
Lithium
Sodium
Potassium
Hydrogen
What is formed when sodium reacts with water?
Sodium oxide and hydrogen
Sodium hydroxide and hydrogen
Sodium hydroxide and oxygen
Sodium hydroxide and carbon dioxide
What is the symbol equation for the reaction between Potassium and water?
2K + 2H2O → 2KOH + H2
2Na + 2H2O → 2NaOH + H
2K + H2O → 2KOH + CO2
2Na + 2H2O → 2NaOH + CO2
Which of the followings is not an alkali metal?
Li
Cl
K
Cs
How many electrons do the alkali metals have in their outer most shell?
1
2
8
7
What happens to the atomic radius of the alkali metals as you move down the group?
increases
decreases
no change
first increases than decreases
What happens to the melting point of the alkali metals as you move down the group?
decreases
increases
no change
first increases than decreases
Which alkali metals is the least reactive?
Lithium
Sodium
Potassium
Rubidium
What is the general formula of a group 1 metal oxide?
M2O
MO
MO2
Mo
Which alkali metal has the lowest natural abundance (existence)?
Francium
Rubidium
Potassium
Sodium
Alkali are so reactive to air. Because of that they are generally stored in ......
water
oil
vaults
cotton
.................. is released when alkali metals react with water.
Hydrogen
Oxygen
Metahne
Carbon dioxide
What kind of solution is produced when group 1 metals react with water?
Neutral
Acidic
Alkaline
Ionized
How many grams of hydrogen gas H2 are produced when 0.7g of lithium react with water ?
0,1 g
1 g
2 g
0,2 g
What colour do the alkali metals turn the universal indicator when they are added to the water?
Orange
Red
Blue
Green
Which alkali metal has the electron configuration 2.8.1
Sodium
Potassium
Lithium
Rubidium
Which of the following alkali metals is the softest one?
Li
Na
K
Rb
Which alkali metal tarnishes fast in air?
Ca
K
Na
Li
Which alkali metal is very important for battery industry?
Fr
Na
Li
Cs
