Tag: mix and separate

Questions Related to mix and separate

_________is present in a lesser amount in a solution.

  1. Solute

  2. Solvent

  3. Solubility

  4. Aqueous solution

  5. Solvation


Correct Option: A
Explanation:

Option A is the correct answer. 

Because, according to the definition, the substance which is present in lesser amount in a solution is known as solute.

A handful of soil is homogeneous mixture of solids.

  1. True

  2. False

  3. Either

  4. Neither


Correct Option: B
Explanation:

A handful of soil is heterogeneous mixture of solids. It is not uniform in composition. 

Gun powder is a mixture of sulphur and coke.

  1. True

  2. False


Correct Option: B
Explanation:

Gun powder is a mixture of Sulphur, Charcoal and Potassium nitrate.

Sugar solution is a heterogenous mixture.

  1. True

  2. False


Correct Option: B
Explanation:

Sugar solution is a homogeneous mixture because any substance dissolve in water is homogeneous mixture.

Which type of solution is not filtrable through filter paper and parchment membrane both?

  1. True solution and colloidal sol

  2. Colloidal sol and suspension

  3. True solution and suspension

  4. Suspension only


Correct Option: D
Explanation:
Filter paper has the pore size of $11 \times 10^{-12}$ m.
Parchment paper Pore size $4.5\times 10^{-13}$ m.
Colloidal solution particle size is $10^-5$ to $10^-2$ m.
True solution particle size is $10^-2$ m.
Suspension solution  Size of particles  usually larger than $10^{-12}$.
So it's cannot pass through Filter paper and Parchment paper both.

Mixture of $MgCO _{3}$ & $NaHCO _{3}$ on strong heating gives $CO _{2}$ & $H _{2}O$ in $3 : 1$ mole ratio. The weight $\%$ of $NaHCO _{3}$ present in the mixture is :

  1. $30\%$

  2. $80\%$

  3. $40\%$

  4. $50\%$


Correct Option: D

A solution is a homogenous mixture of a solute in a solvent.

  1. True

  2. False


Correct Option: A
Explanation:

The above statement is true.
A solution is a homogenous mixture of a solute in a solvent.

A homogenous mixture of two gases is :

  1. Brass

  2. Graphite

  3. Air

  4. Nitrogen


Correct Option: C
Explanation:

The air that we breathe is a homogeneous mixture of oxygen, nitrogen, argon, and carbon dioxide, along with other elements in smaller amounts. Because each layer of the Earths atmosphere has a different density, each layer of air is its own homogeneous mixture.

In construction of a building, which of the following is used?

  1. Water

  2. Cement

  3. Both A and B

  4. None of these


Correct Option: C
Explanation:

In chemistry, a mixture is a material system made up of two or more different substances which are mixed but are not combined chemically. A mixture refers to the physical combination of two or more substances on which the identities are retained and are mixed in the form of solutions, suspensions, and colloids.

Note that a mixture:

  • consists of two or more different elements and/or compounds physically intermingled,
  • can be separated into its components by physical means, and
  • often retains many of the properties of its components.
Cement is a mixture used in construction.

Which of the following are related to apple juice ?

  1. element

  2. mixture

  3. compounds

  4. none of these


Correct Option: B
Explanation:

Apple juice is a fruit juice made by the maceration and pressing of apples. 
so its a mixture.