EASY
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Metals react with water to form oxides or hydroxides and

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Important Questions on Water

EASY
Science>Chemistry>Water>Chemical properties of water
Which one of the following is solution?
MEDIUM
Science>Chemistry>Water>Chemical properties of water
Solution is 
EASY
Science>Chemistry>Water>Chemical properties of water
What happens when steam is passed over red-hot iron. Write only chemical equation.
HARD
Science>Chemistry>Water>Chemical properties of water
Why is rusting of iron considered a chemical change?
MEDIUM
Science>Chemistry>Water>Chemical properties of water

Give reasons-

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

HARD
Science>Chemistry>Water>Chemical properties of water
What is the action of water on magnesium? Write equations of the chemical reactions involved.
EASY
Science>Chemistry>Water>Chemical properties of water
Which of the following is/are stored in kerosene?
HARD
Science>Chemistry>Water>Chemical properties of water
Describe tinning of iron sheets.
MEDIUM
Science>Chemistry>Water>Chemical properties of water
Explain how painting of an iron gate prevents it from rusting.
MEDIUM
Science>Chemistry>Water>Chemical properties of water
Give reason of Water pipes burst in severe winter.
MEDIUM
Science>Chemistry>Water>Chemical properties of water
Give a reason for the following:
Sodium and potassium are stored in kerosene.
MEDIUM
Science>Chemistry>Water>Chemical properties of water
Give reasons: Sodium, potassium and lithium are stored under oil.
MEDIUM
Science>Chemistry>Water>Chemical properties of water
Why does aluminium not react with water under ordinary conditions?
MEDIUM
Science>Chemistry>Water>Chemical properties of water
Give the chemical name of the rust.
EASY
Science>Chemistry>Water>Chemical properties of water
Which of the following reacts vigorously with water and slowly with water?
HARD
Science>Chemistry>Water>Chemical properties of water
Explain why rusting of iron objects is faster in coastal areas than in deserts.
MEDIUM
Science>Chemistry>Water>Chemical properties of water
Sodium metal reacts vigorously with water.
Name the gas evolved when sodium reacts with water.
HARD
Science>Chemistry>Water>Chemical properties of water
Sodium metal reacts vigorously with water.
State whether the Solution formed by the reaction of sodium with water is acidic or basic.
EASY
Science>Chemistry>Water>Chemical properties of water
Give reason of Icebergs float on ocean water.
MEDIUM
Science>Chemistry>Water>Chemical properties of water
Why are iron objects usually painted?