MEDIUM
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What is the process of distillation.

Important Questions on Elements, Compounds and Mixtures

EASY
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
"Spirit kept in an open watch glass is converted into gaseous state even at room temperature". Explain.
EASY
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
Which of the following is a surface phenomenon?
MEDIUM
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
 What is evaporation? In what way is it different from boiling?
MEDIUM
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
How do evaporation and boiling differ? Explain.
HARD
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
What is evaporation? Discuss three factors on which evaporation depends.
MEDIUM
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
Equal amounts of water and alcohol are separately placed in two identical Petri dishes. Which will evaporate faster - water or alcohol?
EASY
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
The changing of a vapour into a liquid is called
EASY
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
During evaporation, the particles of liquid evaporate from -
EASY
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
What is known as evaporation?
MEDIUM
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
A pure solid is obtained from its solution by
HARD
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
What is evaporation? State one large-scale use of the process of evaporation.
EASY
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
Define evaporation.
MEDIUM
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture

Define evaporation. Give an example that indicates that evaporation is an endothermic process.

MEDIUM
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
What is evaporation? How will you show that evaporation causes cooling?
EASY
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
Form a similar pair of words.
Saltwater : _____ (condensation/evaporation) :: muddy water : filtration
HARD
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
Define evaporation? How is salt prepared at seashores?
HARD
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture

Why can sugar not be separated from water by evaporation? 

(Hint: Sugar will get charred if the solution is heated excessively). 

EASY
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
The process of change of a liquid into vapour at any temperature is called -
EASY
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
What happens when we boil water? 
MEDIUM
Science>Chemistry>Elements, Compounds and Mixtures>Separation of components of a mixture
Is evaporation an endothermic or exothermic process? Give one example to support your answer.