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What happens when calcium reacts with water?

Important Questions on Sorting Materials into Groups

EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Which of the following metal in combination with oxygen would yield basic metal oxide?
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Why do we apply paint on iron articles? 
MEDIUM
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals

Write a chemical equation for the reaction taking place in the test tube. How does the colour of the solution change? What is the change in colour of iron nails? 

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EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
What is the gas liberated when the metals react with dilute acids?
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Read the following statements.
Statement I: Sodium metal reacts violently with water to produce heat and fire.
Statement II: Potassium metal reacts violently with water to form potassium hydroxide and hydrogen gas.
 Select the correct answer from the option given below
MEDIUM
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be-
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Zn(s) + CuSO4(aq) →  ZnSO4(aq) + Cu(s). What type of chemical reaction is shown in the above equation?
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
What happens when steam is passed over red-hot iron. Write only chemical equation.
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Aluminium carbide is treated with water, we get
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Why do we apply paint on iron articles?
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Why should we not throw small pieces of sodium into a laboratory sink?
MEDIUM
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Which metal produces dihydrogen (H2) gas by reaction with cold water?
HARD
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Explain the reaction of following with water.
(a) potassium
(b) sodium
(c) calcium
HARD
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
What happens when calcium reacts with water? Write the chemical equation of the reaction of calcium with water.
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Compare the chemical properties of metals and non- metals with respect to reaction of water and dilute acids.
HARD
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Name the reactions of three metals which react with steam.
HARD
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Describe the reaction of potassium with water. Write the equation of the reaction involved.
HARD
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
The metal M reacts vigorously with water to form a solution S and a gas G. The solution S turns red litmus to blue whereas gas G, which is lighter than air, burns with a pop sound. Metal M has a low melting point and it is used as a coolant in nuclear reactors.
(a) What is metal M?
(b) What is solution S? Is it acidic or alkaline?
(c) What is gas G?
(d) Write a balanced chemical equation for the reaction which takes place when metal M reacts with water.
(e) Is this reaction exothermic or endothermic?
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Explain the reaction of potassium with water.
HARD
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Compare the chemical properties of metals and non-metals with respect to reaction of water and dilute acids.