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This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
1. |
What is called a dispersion medium? |
A. | It is where the dispersed phase settles |
B. | It is where the solute particles settle |
C. | It is where the dispersed phase is suspended |
D. | It is the primary medium |
Answer» D. It is the primary medium | |
2. |
What is called a dispersion phase? |
A. | It is the main layer |
B. | It is the secondary layer in which the colloidal particles are dispersed |
C. | It is the secondary layer |
D. | It is the basic colloidal layer |
Answer» C. It is the secondary layer | |
3. |
What is the size of normal an amino acid? |
A. | 1 to 2 nm |
B. | 2 to 3 nm |
C. | 4 to 5 nm |
D. | 2 to 5 nm |
Answer» B. 2 to 3 nm | |
4. |
Which of the following form of colloid is considered to be the lightest colloid? |
A. | Gaseous foam |
B. | Solid sol |
C. | Sol |
D. | Liquid sol |
Answer» B. Solid sol | |
5. |
Which of the following form of colloid is considered to be the strongest colloid? |
A. | Gel |
B. | Foam |
C. | Solid sol |
D. | Liquid sol |
Answer» D. Liquid sol | |
6. |
During an experiment, accidently iodine got mixed up with a biological sample of proteins and polys. Identify the smallest colloid that can be obtained during the process of separation. |
A. | Fats |
B. | Amino acids |
C. | Polys |
D. | R molecules |
Answer» C. Polys | |
7. |
Calculate the size of the colloidal particle present in the mixture of fats and milk from the given data.Amount of milk in litres: 20Amount of fats in grams: 10Time taken to mix the ingredients: 20 sec |
A. | 3 |
B. | 6 |
C. | 4 |
D. | 61 |
Answer» D. 61 | |
8. |
Where does colloidal solution find application in? |
A. | In milk industries |
B. | In chromatic chemical industries |
C. | In crystallography |
D. | In textiles |
Answer» B. In chromatic chemical industries | |
9. |
Which of the following is a characteristic of a colloid? |
A. | It forms 2 layers with a solution |
B. | It forms turbid layers |
C. | It forms heterogeneous layer |
D. | It forms a homogeneous layer |
Answer» C. It forms heterogeneous layer | |
10. |
What is the size of colloidal particles? |
A. | 10-20 nm |
B. | More than 20 nm |
C. | Less than 10 nm |
D. | 30 to 50 nm |
Answer» B. More than 20 nm | |