What is formed when two or more substances are combined in such a way that one Cannot distinguish?
In our daily lives, we come across a variety of products labelled as pure. You may have noticed it on the packages of milk, butter, ghee, and so on. Show For the average person, anything that is free of adulteration or foreign substances is pure, but this is not true from a scientific perspective. In science, anything made up of only one element is referred to as pure. As a result, even though the carton of milk is labelled as pure, it is not. It is not pure for scientific purposes, but it is considered a mixture.
Mixtures Chemistry Questions with SolutionsQ1. Which of the following best describes a chemical mixture?
Correct Answer. (c) Q2. Which of the following is NOT a property of a mixture?
Correct Answer. (b) Q3. Which of the following is an example of a homogeneous mixture?
Correct Answer. (e) Q4. In what type of mixture are the substances evenly distributed throughout the mixture?
Correct Answer. (a) Q5. What type of mixture is steel?
Correct Answer. (a) Q6. State True or False. Only specific compounds can be combined to form mixtures. Answer. False Q7. Define mixture. Answer. When two or more substances mix without undergoing any chemical change, the resulting substance is referred to as a Mixture in chemistry. The result of the combination of substances does not lose its uniqueness, nor are they chemically combined. A mixture is the end result of mechanically blending or mixing chemical substances such as elements and compounds. Q8. Define colloid. Answer. A colloidal solution appears homogeneous to the naked eye, but particles can be seen under a microscope. The size of the particles ranges from 1 nanometer to 1 micrometre. Colloids, like solutions, are physically stable. They demonstrate the Tyndall effect. Decantation cannot be used to separate colloid components; however, centrifugation can. Hair spray (gas), smoke (gas), whipped cream (liquid foam), and blood are all examples of colloids (liquid). Q9. Give an example for each of the following:
Answer.
Q10. Write your observation when the following processes take place:
Answer.
Q11. Identify the following as homogeneous or heterogeneous matter.
Answer.
Q12. What are some of the common techniques used in separating mixtures? Answer. Some of the common techniques used in separating mixtures are as follow:
Q13. What are the properties of mixtures? Answer. The various properties of mixtures are discussed further below.
Q14. Give the difference between Homogeneous and Heterogeneous mixtures. Answer. The difference between a Homogeneous mixture and a Heterogeneous mixture is as follows-
Q15. What is the difference between mixture and solution? Answer. The difference between mixture and solution is s follows-
Practise Questions on MixturesQ1. A combination of a liquid and a solid in which the solid does not dissolve:
Q2. State the separation technique used for the separation of the following:
Q3. List the two conditions essential for using distillation as a method for the separation of the components from a mixture. Q4. Seawater can be classified as homogeneous as well as a heterogeneous mixture.’ Comment. Q5. Name the separation technique you would follow to separate (i) Dyes from black ink. (ii) A mixture of salt and ammonium chloride (iii) Cream from milk (iv) Sodium chloride from its solution in water Click the PDF to check the answers for Practice Questions. Recommended VideosTypes of Mixtures |