Challenge Yourself

Challenge Yourself

University

9 Qs

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Challenge Yourself

Challenge Yourself

Assessment

Quiz

Chemistry

University

Practice Problem

Hard

Created by

SAZLINDA FS

Used 3+ times

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9 questions

Show all answers

1.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

How's learning Analytical Chemistry so far? Are you happy or not? Answer YES or NO only

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The particle size or precipitates can be controlled during gravimetric analysis. How to minimize the relative super saturation phenomenon?

The value of S must be low

Q-S must be high

Q-S must be low

The value of Q must be high

3.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Which are the methods to minimize the adsorbed impurities on precipitate surfaces? (Tick all the possible answers)

Reprecipitation

Washing

Burning

Digestion

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

The precipitate formed when barium chloride is treated with sulfuric acid is _________? answer with molecular name and all small letters

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Name the process that contaminates the precipitates and also carries the precipitate solution containing soluble impurities.

Supersaturation

Reprecipitation

Coprecipitation

None of the above

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Analyse the statements and select the correct option.

Statement I: The precipitate must have high solubility in order to be easily separated from the reaction mixture.

Statement II: Large-particle precipitates are frequently preferred for gravimetric analysis.

Both statements are incorrect

Only statement II is correct

Both statements are correct

Only statement I is correct

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Larger-sized particles are required for gravimetric analysis because they are easily filtered and washed clean of impurities. True or false?

True

False

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