EASY
Earn 100

Which separation technique will you apply for the separation of the following mixture:

Ammonium chloride from a mixture containing Sodium chloride and Ammonium chloride.

Important Questions on Elements, Compounds and Mixtures

EASY
Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
On heating camphor in a porcelain dish it got mixed in air without melting. This phenomenon is known as
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Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
A suitable method for the separation of pure naphthalene from sandy naphthalene is:
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Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
Which of the following compound can not be sublimed?
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Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
What method will you suggest to separate iodine from a mixture of iodine, marble powder and sand? Give a reason for your answer. 
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Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
Choose the correct statement from the following.
HARD
Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
Define sublimation. Describe an experiment to show the sublimation of a solid substance. Name two substances from your daily life that sublime on heating.
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Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
Which of the following will not sublime -
EASY
Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
Process that involves direct conversion of solid to gas is called?
EASY
Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
What is known as sublimation?
HARD
Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture

Give one simple activity/experiment to show: Ammonium chloride sublimes.

MEDIUM
Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture

Give a reason for the following:

Naphthalene ball disappears without leaving any solid.

HARD
Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
How is sublimation different from solidification?
MEDIUM
Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
A student was given one packet containing white crystals of sodium chloride and another packet containing white crystals of ammonium chloride for carrying out a project. But he forgot to label the packets. One of his friends suggested him to carry out sublimation on each sample and to identify the sublimable solid. He then helped the student to set up the apparatus for carrying out sublimation and then jointly carried out sublimation of each sample separately.
A. Define sublimation.
B. What are sublimable solids? Give two examples of sublimable solids.
C. State the values demonstrated by the fellow student in helping his friend to identify the samples.
MEDIUM
Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture

Give an example for the mixture having the following characteristics. Suggest a suitable method to separate the components of the mixture.

One of the components changes directly from solid to gaseous state.

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Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
Camphor is purified by the process of -
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Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
Draw a sketch for an experimental set-up for sublimation.
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Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
The substance which does not sublime on heating is:
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Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
Conversion of solid to vapour is called sublimation. Name the term used to denote the conversion of vapour to solid.
MEDIUM
Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
Explain the following:
Naphthalene balls disappear with time without leaving any solid.
 
EASY
Science>Chemistry>Elements, Compounds and Mixtures>Separation of Components of a Mixture
Which substance undergo sublimation process -