Practical Analytical Chemistry Quiz ( Cations )
- 1.
Group 1 cations : we add (????) dil HCL
- A.
Excess
- B.
Slight excess
- C.
Large excess
Correct Answer
B. Slight excessExplanation
The correct answer : slight excessRate this question:
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- 2.
Group 1 cations : why we add ( slight excess ) from HCL ?
- A.
To make complete perceptation to cations
- B.
To direct the reaction to form AgCl
- C.
To reduce solubility of AgcL
- D.
All answers above are right
Correct Answer
D. All answers above are rightExplanation
the correct answer is : All answers above are rightRate this question:
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- 3.
PbCrO4 ppt is yellow
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
the correct answer is : TrueRate this question:
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- 4.
Sb2S3 ppt coulor is ?
- A.
Yellow
- B.
Red
- C.
Black
- D.
Option4
Correct Answer
B. RedExplanation
Red is the correct answerRate this question:
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- 5.
Why we add KNO3 to the ppt ( Group 2 cations ) ?
- A.
To form colloidal solution
- B.
Prevent occurrence colloidal solution
Correct Answer
B. Prevent occurrence colloidal solutionExplanation
Prevent occurrence colloidal solutionRate this question:
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- 6.
PbCL2 is solouble in cold water
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
hot water not coldRate this question:
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- 7.
Group 2 cations : the amount of Hcl should be ?
- A.
From 0.2 to 0.3 M
- B.
More Than 0.3 M
- C.
Less than 0.2 M
Correct Answer
A. From 0.2 to 0.3 MExplanation
the correct answer is : from 0.2 to 0.3 MRate this question:
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- 8.
What happened if the amount of HCL in Group 2 cations is less than 0.2 M ?
- A.
It will perceptate the cations of Group 3
- B.
It will perceptate the cations of Group 4
- C.
It will perceptate the cations of Group 5
Correct Answer
B. It will perceptate the cations of Group 4Explanation
it will perceptate the cations of Group 4 is the correct answerRate this question:
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- 9.
CO+2 is a member of Group ??
- A.
3
- B.
4
- C.
5
Correct Answer
B. 4Explanation
4Rate this question:
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- 10.
1 ml solution of ( Ni+2 ) + ( DMG ) Give ??
- A.
Blood Red colour
- B.
Pale yellow colour
- C.
Rose Red colour
- D.
Option 4
Correct Answer
C. Rose Red colourExplanation
Rose red colourRate this question:
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Mar 15, 2023Quiz Edited by
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Nov 25, 2017Quiz Created by
Momenabdelmoniem
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