EASY
Earn 100

Zinc reacts with cold water to form zinc oxide.

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Important Questions on Metallurgy

EASY
Science>Chemistry>Metallurgy>Chemical properties of metals
Why should we not throw small pieces of sodium into a laboratory sink?
EASY
Science>Chemistry>Metallurgy>Chemical properties of metals
Aluminium carbide is treated with water, we get
EASY
Science>Chemistry>Metallurgy>Chemical properties of metals
What happens when steam is passed over red-hot iron. Write only chemical equation.
EASY
Science>Chemistry>Metallurgy>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>Metallurgy>Chemical properties of metals
Which metal produces dihydrogen (H2) gas by reaction with cold water?
EASY
Science>Chemistry>Metallurgy>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>Metallurgy>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>Metallurgy>Chemical properties of metals
Explain the reaction of potassium with water.
HARD
Science>Chemistry>Metallurgy>Chemical properties of metals
Compare the chemical properties of metals and non-metals with respect to reaction of water and dilute acids.
MEDIUM
Science>Chemistry>Metallurgy>Chemical properties of metals
Why does aluminium not react with water under ordinary conditions?
HARD
Science>Chemistry>Metallurgy>Chemical properties of metals
What is the action of water on sodium? Write the equations of the chemical reactions involved.
MEDIUM
Science>Chemistry>Metallurgy>Chemical properties of metals

Make pairs of substances and their properties

Substance Property
a. Potassium bromide 1. Combustible
b. Gold 2. Soluble in water
c. Sulphur 3. No chemical reaction
d. Neon 4. High ductility

 

HARD
Science>Chemistry>Metallurgy>Chemical properties of metals
Explain the reaction of following with water.
(a) potassium
(b) sodium
(c) calcium
HARD
Science>Chemistry>Metallurgy>Chemical properties of metals
What happens when calcium reacts with water? Write the chemical equation of the reaction of calcium with water.
HARD
Science>Chemistry>Metallurgy>Chemical properties of metals
Name the reactions of three metals which react with steam.
HARD
Science>Chemistry>Metallurgy>Chemical properties of metals
Describe the reaction of potassium with water. Write the equation of the reaction involved.
MEDIUM
Science>Chemistry>Metallurgy>Chemical properties of metals
Give reasons: Sodium, potassium and lithium are stored under oil.
HARD
Science>Chemistry>Metallurgy>Chemical properties of metals
What is the action of water on magnesium? Write equations of the chemical reactions involved.
MEDIUM
Science>Chemistry>Metallurgy>Chemical properties of metals

Give reasons-

Why copper is used to make hot water tanks and not steel (an alloy of iron)?

EASY
Science>Chemistry>Metallurgy>Chemical properties of metals
Write equations for the reactions of Iron with steam.