What is the correct order of the methods you would apply to separate the components of a mixture of ammonium chloride, common salt and sand ?
(1) dissolving in water, filtration, evaporation and sublimation
(2) dissolving in water, evaporation and sublimation
(3) sublimation, dissolving in water, filtration and evaporation
(4) moving a magnet, dissolving in water and sublimation
Correct answer: (3) sublimation, dissolving in water, filtration and evaporation
Explanation: Solid ammonium chloride was directly converted to the gas phase, and can easily be separated out from the mixture. Common salt dissolved in water can also be separated from the mixture by the evaporation method.
Sand easily be separated by the filtration method.
Related Articles
- A student, by mistake, mixed sulphur powder with iron filings. The following techniques were suggested to separate the sulphur from the mixture out of which he has to choose one :A. dissolving in carbon disulphide, filtration, evaporationB. dissolving in water at room temperature and filtrationC. dissolving in hot water, filtration and evaporationD. dissolving in ice cold water and filtrationThe correct technique is :(1) (A) (2) (B) (3) (C) (4) (D)
- A mixture of milk and groundnut oil can be separated by :(a) sublimation (b) evaporation(c) separating funnel (d) filtration
- Separate the following into physical and chemical changes :Sublimation of a solid, Decomposition of water into hydrogen and oxygen by passing electric current, Formation of clouds, Making a fruit salad from raw fruits, Dissolving carbon dioxide in water.
- How will you separate all the components of a mixture of sand and salt in water?
- (a) What is sublimation? Name two substances (other than ammonium chloride) which undergo sublimation.(b) Draw a labeled diagram of the experimental set-up to demonstrate the sublimation of ammonium chloride.
- Dissolving sugar in water is a physical or chemical change.
- Suggest separation technique(s) one would need to employ to separate the following mixtures.(a) Mercury and water(b) Potassium chloride and ammonium chloride(c) Common salt, water and sand(d) Kerosene oil, water and salt
- Which of the following are exothermic processes?(i) Reaction of water with quick lime(ii) Dilution of an acid(iii) Evaporation of water(iv) Sublimation of camphor (crystals)
- Which of the following mixture can be separated completely by the process of sublimation ?(1) fine sand and cane sugar(2) sodium chloride and potassium permanganate(3) potassium chloride and ammonium chloride(4) barium chloride and sodium sulphate
- If a fresh egg is put into a beaker filled with water, it sinks. On dissolving a lot of salt in the water, the egg begins to rise and then floats. Why?
- What is the definition of Sublimation?
- Which condition out of the following will increase the evaporation of water?(a) Increase in temperature of water.(b) Decrease in temperature of water.(c) Less exposed surface area of water.(d) Adding common salt to water.
- Classify the following as chemical or physical changes:cutting of trees,melting of butter in a pan,rusting of almirah,boiling of water to form steam,passing of electric current, through water and the water breaking down into hydrogen and oxygen gas,dissolving common salt in water,making a fruit salad with raw fruits andburning of paper and wood.
- To separate the mixture of sand, oil and water, which methods we will use?
- Four students took separately the mixture of sand, common salt and ammonium chloride in beakers, added water, stirred the mixture well and then filtered. They reported their observations as shown below.StudentAs residueIn the filtrateIAmmonium chlorideSand Common saltIICommon salt, SandAmmonium chlorideIIISand, Ammonium chlorideCommon SaltIVSandAmmonium chloride, Common saltWho reported the observations in the correct order of the components as residue and in the filtrate ?(1) I (2) IV (3) III (4) II
Kickstart Your Career
Get certified by completing the course
Get Started
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies