Advertisements
Advertisements
प्रश्न
Choose the most appropriate answer
Which of the following property is not shown by compounds?
विकल्प
They are heterogeneous.
They are homogeneous
They have definite molecular formulae.
They have fixed melting and boiling points
उत्तर
They are heterogeneous.
APPEARS IN
संबंधित प्रश्न
What is chromatography? For which type of mixture is it used?
Fill in the blan
Iodine, camphor, naphthalene, ammonium chloride and dry ice are some substances that ....................................
What is centrifugation ? Also write the principle on which it works.
Suggest a suitable technique to separate the constituents of the following mixtures. Also give the reason for selecting the particular method :
Iron from sulphur
Compare the properties of iron [II] sulphide with the iron-sulphur mixture, considering iron [II] sulphide as a compound & particles of iron & sulphur mixed together as an example of a mixture.
State any one method – to separate the following mixtures – Two solid mixtures one of which – directly changes into vapour on heating.
State any one method – to separate the following mixtures – A liquid-liquid mixture containing – two immiscible'' liquids having different densities
Give a reason for the following statement :
Components in a mixture can be separated by physical methods only.
Paheli asked for a glass of water from Boojho. He gave her a glass of ice cold water. Paheli observed some water droplets on the outer surface of the glass and asked Boojho how these droplets of water were formed. Which of the following should be Boojho’s answer?
A mixture of iron nails, salt, oil and water is provided to you. Give stepwise methods to separate each component from this mixture.
