Observe the apparatus shown and answer the following questions:
$(a)$ Name the apparatus.
$(b)$ State one use of the apparatus.
$(c)$ State the principle involved in this process.

$(i)$ Name the process or the separation technique you would follow to separate:
$(a)$ Dyes in black ink
$(b)$ Butter from cream
$(c)$ Ammonium chloride and common salt
$(d)$ Iron filings and sand
$(ii)$ State the principle used in separation by centrifugation.

How will you separate a mixture of common salt,camphor,and iron filings? Describe the process.

State whether the following statement is true or false:
$A$ compound is a substance composed of two or more elements,chemically combined with one another in a fixed proportion.

The substances that sublime easily are

How will you separate a mixture of common salt $(A)$,camphor $(B)$ and iron filings $(C)$? Describe the process.