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Sodium is kept in .

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Important Questions on Water

MEDIUM
Science>Chemistry>Water>Properties of Water

Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?

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Science>Chemistry>Water>Properties of Water
What is the gas liberated when the metals react with dilute acids?
HARD
Science>Chemistry>Water>Properties of Water
Differentiate between metals and non-metals on the basis of their chemical properties.
MEDIUM
Science>Chemistry>Water>Properties of Water

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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MEDIUM
Science>Chemistry>Water>Properties of Water
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>Water>Properties of Water
What happens when steam is passed over red-hot iron. Write only chemical equation.
EASY
Science>Chemistry>Water>Properties of Water
Which of the following metal in combination with oxygen would yield basic metal oxide?
EASY
Science>Chemistry>Water>Properties of Water
Zn(s) + CuSO4(aq) →  ZnSO4(aq) + Cu(s). What type of chemical reaction is shown in the above equation?
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Science>Chemistry>Water>Properties of Water
Why do we apply paint on iron articles? 
EASY
Science>Chemistry>Water>Properties of Water
Why do we apply paint on iron articles?
EASY
Science>Chemistry>Water>Properties of Water
Water expands on reducing its temperature below _____ °C.
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Science>Chemistry>Water>Properties of Water
Why does the earth appear blue from space?
EASY
Science>Chemistry>Water>Properties of Water
Our bodies do not contain any water.
MEDIUM
Science>Chemistry>Water>Properties of Water
How is water important for the functioning of bodies of living organisms like plants and animals?
EASY
Science>Chemistry>Water>Properties of Water

Fill in the blank using the word given below.

(Uniform, atmosphere, humus, kilograms/grams, hydroelectric)

Water is used to generate _____ power.

EASY
Science>Chemistry>Water>Properties of Water
Which of the following contains maximum quantity of water in it?
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Science>Chemistry>Water>Properties of Water
Mixing of oxygen in water is an example of a solution with:
EASY
Science>Chemistry>Water>Properties of Water
This is given in case of dehydration _____ solution. (oral dehydration/ oral rehydration)
EASY
Science>Chemistry>Water>Properties of Water
The extent of which a substance gets dissolved in a liquid is called _____.
EASY
Science>Chemistry>Water>Properties of Water
In what ways does your body lose water?