Tag: homogenous and heterogenous mixtures

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Questions Related to homogenous and heterogenous mixtures

Multiple choice chemistry mix and separate different types of mixtures homogenous and heterogenous mixtures all about mixtures

Which substances show variations in composition on a particulate and macroscopic level?

  1. A pure element.

  2. A simple compound.

  3. A homogeneous solution.

  4. A heterogeneous mixture.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A heterogeneous mixture show variations in composition on a particular and macro scope level. A heterogeneous mixture do not have uniform composition. it show variation at any level whether microscope or macroscopic.

Multiple choice chemistry mix and separate different types of mixtures homogenous and heterogenous mixtures all about mixtures

The mixture of gases used by deep-sea divers is helium-oxygen.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The main reason for adding helium to the breathing mixture is to reduce the proportions of nitrogen and oxygen below those of air, to allow the gas mixture to be breathed safely on deep dives. A lower proportion of nitrogen is required to reduce nitrogen narcosis and other physiological effects of the gas at depth.

Multiple choice chemistry mix and separate different types of mixtures homogenous and heterogenous mixtures all about mixtures

Magnesium sulphate in water is a ______mixture.

  1. solid-solid

  2. homogeneous

  3. heterogeneous

  4. colloidal
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Homogeneous mixture- it is a mixture of solids, liquids and gases that has the same proportions of its components in any sample,

Magnesium sulphate(Epsom salt) is also a homogeneous mixture.
The correct option is [B].

Multiple choice chemistry mix and separate different types of mixtures homogenous and heterogenous mixtures all about mixtures

Which one of the following statement is incorrect?

  1. All elements are homogeneous

  2. Compound made up of a number of elements are heterogeneous

  3. A mixture is not always heterogeneous

  4. Air is a heterogeneous mixture
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Air is a mixture of gas in gas.

The mixture of gas in gas is always homogenous.
Thus, air is a homogenous mixture.