Questions
Question 1 Multiple Choice (Single Answer)
The particles of suspension_________?
- can be seen with naked eye.
- cannot be seen with naked eye.
- cannot be seen through a microscope.
- can be seen through a microscope.
Question 2 Multiple Choice (Single Answer)
Mixture has__________?
- fixed composition
- no fixed composition
- fixed elements
- both (1) and (3)
Question 3 Multiple Choice (Single Answer)
Which technique should be used to separate dye from ink?
- Centrifugation
- Chromatography
- Filtration
- Crystallization
Question 4 Multiple Choice (Single Answer)
The technique used to separate two immiscible liquids is___________.
- separating funnel
- distillation
- fractional distillation
- decantation
Question 5 Multiple Choice (Single Answer)
Which of the following techniques can be used to separate ammonium chloride from a mixture of sand and salt?
- Sublimation
- Crystallization
- Evaporation
- Condensation
Question 6 Multiple Choice (Single Answer)
Which of the following can be used to separate drugs from blood?
- Chromatography
- Sedimentation
- Sublimation
- Evaporation
Question 7 Multiple Choice (Single Answer)
_______ is the best technique to obtain sugar solutes from its solution.
- Crystallization
- Evaporation
- Filtration
- Centrifugation
Question 8 Multiple Choice (Single Answer)
Which of the following is a characteristic of both mixtures and compounds?
- Their properties are same as those of their compounds.
- Energy is absorbed when they are formed.
- Their masses is equal to the sum of the masses of their components.
- They contain the components in fixed proportion.
Question 9 Multiple Choice (Single Answer)
Which of the following solution is transparent?
- True solution
- Suspension
- Colloidal solution
- Heterogeneous solution
Question 10 Multiple Choice (Single Answer)
When milk is churned, cream gets separated from it due to___________?
- frictional force
- cohesive force
- gravitational force
- centrifugal force