Magnetic Separation

Q.

Which of the following is/are correct for solutions? ​

i) Solution is a homogeneous mixture.​

ii) Solutions exist in liquid state only.​

iii) The component of solution that is usually present in larger amount is called solvent.

Q.

How is a mixture of common salt, oil and water separated? You can use a combination of different methods.

Q. Which of the following are the properties of a solution?
A: It is a homogeneous mixture.
B: The size of the particles are smaller than 1 nm.
C: It does not allow the beam of light to pass through.

1. A, B and C
2. A and B only
3. B and C only
4. Only A

Q. Which of the following are the properties of a solution?
A: It is a homogeneous mixture.
B: The size of the particles are smaller than 1 nm.
C: It does not allow the beam of light to pass through.

(A) Only A
(B) A and B only
(C) B and C only
(D) A, B, and C

Q. The chemical formula of willemite is:

1. $ZnS$
2. $ZnC{O}_3$
3. $ZnO$
4. $Z{n}_{2}Si{O}_4$

Q. a. Choose the ore from those given below which can be used in the above figure.
Bauxite , Tin stone , Copper pyrites , Calamine
b. Give a reason for your answer.

Q. All the following are ceramic articles except:​

1. 
   Pottery​
2. 
   
   Tiles​
3. 
   Cutlery​
4. 
   Deodorants​

Q. How is a mixture of common salt, oil and water separated? You can use a combination of different methods. [TEXTBOOK QUESTION - VII(3)]

Q. Match the given substances with their types.

1. Homogeneous mixture
2. Heterogeneous mixture
3. Pure substance