Which among the following is not a homogeneous mixture?
Sulfur in water
Homogenous mixture: This mixture is uniform throughout. Separate components are not visible
Heterogenous mixture: This mixture is not uniform throughout. Separate components are visible.
Correct option(d)
Sulfur is not soluble in water.
Different components are visible in this
Therefore, it is a type of heterogeneous mixture.
Incorrect options
Option(a)
Solder: It is a type of alloy which is made up of tin and lead.
It is a type of homogenous mixture.
Option(b)
an aqueous solution of NaCl: It is a type of homogenous mixture, the composition of the mixture is not visible in this
Option(c)
Sulfur in carbon disulfide: Sulfur is soluble in carbon disulfide and results in the formation of a homogeneous solution.
Hence, option (d) is correct.