Advertisements
Advertisements
Question
Choose the most appropriate answer
Which of the following property is not shown by compounds?
Options
They are heterogeneous.
They are homogeneous
They have definite molecular formulae.
They have fixed melting and boiling points
Solution
They are heterogeneous.
APPEARS IN
RELATED QUESTIONS
Differentiate between the following
Supernatant liquid and Fill rate
What is centrifugation ? Also write the principle on which it works.
Match the ideal method of separation of components in a mixture in List I with the appropriate process in List II.
List I | List II |
1. Sand from a mixture of sand and water | A: Separating funnel |
2. kerosene from a mixture of kerosene water | B: Sublimation |
3. Alcohol from a mixture of methyl alcohol and water | C: Filtration |
4. Naphthalene from a mixture of naphthalene and lead chloride | D: Distillation |
5. Pure water from impure water | E: Fractional distillation |
State any one method – to separate the following mixtures – A liquid-liquid mixture containing – two immiscible'' liquids having different densities
State any one method – to separate the following mixtures – A liquid-liquid mixture containing – two miscible liquids having different boiling points.
Explain with a diagram the process used to – separate the following substance from the given mixture.
Lead carbonate [insoluble] from a mixture of – lead carbonate & water.
How will you separate sand and water from their mixture?
Match the following
Column A | Column B | ||
1. | Separation of salt from saltwater | a. | Magnetic separation |
2. | Separation of tea leaves from tea extract | b. | Evaporation |
3. | Separation of sand and iron filings | c. | Churning |
4. | Separation of butter from curds | d. | Filtration |
Boojho’s grandmother is suffering from diabetes. Her doctor advised her to take ‘Lassi’ with less fat content. Which of the following methods would be most appropriate for Boojho to prepare it?
State whether the following statement is true or false.
A mixture of iron filings and rice flour can be separated by magnet.