Mixtures

Q.

Classify each of the following as a homogeneous or heterogeneous mixture. Soda water, wood, air, soil, vinegar, filtered tea?

Q.

Which of the following is not a homogeneous mixture?

1. fruit juice

2. milk

3. sand and saw dust

4. ice-cream

Q. Choose the correct statement(s) regarding given percentage concentration terms:

1. $\%w/w$ is defined as the weight in grams of the solute per $100g$ of the solution.​
2. $\%w/w$ is defined as the weight in grams of the solute per $100g$ of the solvent.​
3. $\%w/V$ is defined as the weight in grams of the solute per $100mL$ of the solution..
4. $\%w/V$ is defined as the weight in grams of the solute per $100mL$ of the solvent.​

Q.

Is blood homogeneous mixture?

Since homogeniety is measured in two scale- visible scale and microscopic scale

In visible scale we can see that it is homogeneous mixture but in microscopic scale there is difference between the RBC, WBC and many more particles. Thus blood is homogeneous mixture or heterogeneous mixture?

Q.

A mixture of salt and sugar is an example of homogeneous mixture.

1. True
2. False

Q.

2. A mixture of alcohol and water is an example of _______ mixture.

Q.

Is blood homogeneous or heterogeneous. What exactly it is ?

I want brief explanation about it.

Q.

A solution is a homogeneous mixture of two or more substances

1. True
2. False

Q. Formation of a solution from two components can be considered as - (i) Pure solvent → separated solvent molecules, ΔH1 (ii) Pure solute → separated solute molecules, ΔH2 (iii) Interaction between separated solvent and separated solute molecules in the solution, ΔH3 Solution so formed will be ideal if :- (1) ΔHsolution = ΔH1 + ΔH2 + ΔH3 (2) ΔHsolution = ΔH1 + ΔH2 – ΔH3 (3) ΔHsolution = ΔH1 – ΔH2 – ΔH3 (4) ΔHsolution = ΔH3 – ΔH1 – ΔH2

Q.

Muddy water is an example of a homogeneous mixture.

1. True
2. False

Q. The chemical properties of the components of a mixture are always retained.

1. True
2. False

Q.

Is a cup of tea a homogeneous or heterogeneous mixture?

Q.

Identify homogeneous mixtures from the following.

1. Soda water

2. Brass

3. Air

4. Soap solution

Q.

The mixtures in which the components are distributed uniformly are called _______ ( homogenous/heterogenous) mixtures.

Q.

Which of the following is homogeneous?

1. Ice

2. Wood

3. Soil

4. Air

Q.

Give one example each of (a) a homogeneous mixture. (b) a heterogeneous mixture.

Q.

Difference between homogeneous and heterogeneous mixture.

Q.

Assertion: Colloidal solutions show colligative properties.

Reason : Colloidal particles are large in size

1. Assertion is correct but reason is incorrect.

2. Both assertion and reason are incorrect.

3. Assertion and reason both are correct but reason does not explain assertion

4. Assertion is incorrect but reason is correct.

5. Assertion and reason both are correct and the reason is the correct explanation of assertion

Q.

Classify the following as homogeneous and heterogeneous mixture:

Iodised salt

Q. What is Telluric helix ?

Q. in azeotropic mixture , what is the state of the solute and solvent(like are they solids or liquids

Q. What is castner process and castner-kellner process ?

Q.

Identify the homogeneous mixture from the following:

Starch solution, soda water, soap solution, milk

Q.

Milk is a homogeneous solution.

1. True
2. False

Q.

Pulses containing stones is an example of:

Q.

Which of the following is not a homogeneous mixtures?

1. Steel

2. Milk

3. Brass

4. Bronze

Q. A combination of any substance with any number of other substances is called a mixture.

1. True
2. False

Q.

Give reason: A mixture of sugar and water looks the same throughout.

Q.

homogeneity depends on interest of scale. explain

Q. It is possible to make a mixture by combining any 2 or more random substances.

1. True
2. False