Practical Analytical Chemistry Quiz ( Cations )
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PbCrO4 ppt is yellow
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True
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False
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This quiz focuses on the identification and analysis of Group 1 and Group 2 cations in analytical chemistry, including their reactions and properties.
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- 2.
PbCL2 is solouble in cold water
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True
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False
Correct Answer
A. FalseExplanation
hot water not coldRate this question:
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- 3.
Group 1 cations : we add (????) dil HCL
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Excess
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Slight excess
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Large excess
Correct Answer
A. Slight excessExplanation
The correct answer : slight excessRate this question:
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- 4.
Why we add KNO3 to the ppt ( Group 2 cations ) ?
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To form colloidal solution
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Prevent occurrence colloidal solution
Correct Answer
A. Prevent occurrence colloidal solutionExplanation
Prevent occurrence colloidal solutionRate this question:
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- 5.
Group 2 cations : the amount of Hcl should be ?
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From 0.2 to 0.3 M
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More Than 0.3 M
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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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- 6.
Group 1 cations : why we add ( slight excess ) from HCL ?
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To make complete perceptation to cations
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To direct the reaction to form AgCl
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To reduce solubility of AgcL
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All answers above are right
Correct Answer
A. All answers above are rightExplanation
the correct answer is : All answers above are rightRate this question:
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- 7.
1 ml solution of ( Ni+2 ) + ( DMG ) Give ??
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Blood Red colour
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Pale yellow colour
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Rose Red colour
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Option 4
Correct Answer
A. Rose Red colourExplanation
Rose red colourRate this question:
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- 8.
What happened if the amount of HCL in Group 2 cations is less than 0.2 M ?
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It will perceptate the cations of Group 3
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It will perceptate the cations of Group 4
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It will perceptate the cations of Group 5
Correct Answer
A. 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 ??
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3
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4
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5
Correct Answer
A. 4Explanation
4Rate this question:
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- 10.
Sb2S3 ppt coulor is ?
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Yellow
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Red
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Black
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Option4
Correct Answer
A. RedExplanation
Red is the correct answerRate this question:
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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Mar 15, 2023Quiz Edited by
ProProfs Editorial Team -
Nov 25, 2017Quiz Created by
Momenabdelmoniem