Chromatography Required practical Quiz

Chromatography Required practical Quiz

10th Grade

12 Qs

quiz-placeholder

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Chromatography Required practical Quiz

Chromatography Required practical Quiz

Assessment

Quiz

Chemistry

10th Grade

Practice Problem

Hard

Created by

Clare Bell

Used 7+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does chromatography mean?

Color writing

Color separation

Material writing

Material separation

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What are the two phases in chromatography?

Solid phase and liquid phase

Mobile phase and stationary phase

Active phase and passive phase

Polar phase and nonpolar phase

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Why is it important to use pencil for drawing the baseline on the chromatography paper?

The pencil is insoluble

To make the baseline more visible

To improve the separation process

To ensure accurate measurements

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the purpose of the mobile phase in chromatography?

To dissolve the colors in the food dye

To keep the colors stationary on the paper

To measure the distance traveled by the colors

To prevent the colors from mixing

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the stationary phase in chromatography?

The chromatography paper itself

The food coloring dots on the paper

The glass rod holding the paper

The water in the beaker

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does the RF value measure in chromatography?

The solubility of the colors in the solvent

The affinity of the colors for the mobile phase

The distance traveled by the colors

The distance traveled by the solvent

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How is the RF value calculated for a specific color?

By multiplying the distance traveled by the color with the distance traveled by the solvent

By dividing the distance traveled by the color by the distance traveled by the solvent

By adding the distance traveled by the color to the distance traveled by the solvent

By subtracting the distance traveled by the color from the distance traveled by the solvent

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