Practice MCQ For Govt Pharmacist Exam, in this article we will solve, Practice MCQ on the topic complexometric titrations under the subject Pharmaceutical inorganic chemistry of first semester. Read following article for your reference.
Complexometric Titrations » PHARMACAREERS
What is complexometric titration?
a) A form of volumetric analysis
b) A form of gravimetric analysis
c) A form of qualitative analysis
d) A form of spectroscopic analysis
Which of the following is not a type of complexometric titration?
a) Direct titration
b) Back titration
c) Replacement titration
d) Redox titration
What is the role of a complexometric indicator in a titration?
a) To react with the titrant
b) To signal the endpoint of the titration
c) To act as a buffer
d) To increase the rate of reaction
What is the purpose of a masking agent in complexometric titration?
a) To increase the rate of reaction
b) To prevent interference from certain ions
c) To act as a buffer
d) To signal the endpoint of the titration
What is the purpose of a demasking agent in complexometric titration?
a) To increase the rate of reaction
b) To prevent interference from certain ions
c) To remove the masking agent from the metal ion of interest
d) To signal the endpoint of the titration
Which of the following is commonly used as a titrant in complexometric titration?
a) Sodium hydroxide
b) Hydrochloric acid
c) EDTA
d) Potassium permanganate
In the estimation of magnesium sulphate by complexometric titration, what color change indicates the endpoint?
a) Blue to red
b) Red to blue
c) Yellow to blue
d) Blue to yellow
What is the chemical formula for magnesium sulphate?
a) MgSO4
b) MgCO3
c) MgCl2
d) Mg(NO3)2
In the reaction between EDTA and magnesium ions, what is the product formed?
a) MgY2-
b) Mg2+
c) H2Y2-
d) MgOH2
What is the role of EDTA in complexometric titration?
a) To act as a buffer
b) To act as a titrant
c) To act as an indicator
d) To act as a solvent
What is the color change of Eriochrome Black T when all the magnesium ions have reacted with the EDTA?
a) Blue to red
b) Red to blue
c) Yellow to blue
d) Blue to yellow
In a back titration, what is determined?
a) The concentration of the analyte
b) The concentration of the titrant
c) The pH of the solution
d) The temperature of the solution
In a replacement titration, what happens?
a) The metal ion displaces another metal ion from a complex
b) The metal ion is replaced by a hydrogen ion
c) The metal ion is replaced by a hydroxide ion
d) The metal ion is replaced by a nitrate ion
In an indirect titration, what is determined?
a) The concentration of the analyte
b) The concentration of the titrant
c) The pH of the solution
d) The temperature of the solution
What is the role of a standard solution in a titration?
a) To act as a buffer
b) To act as a titrant
c) To act as an indicator
d) To act as a solvent
What is the role of a sample solution in a titration?
a) To act as a buffer
b) To act as a titrant
c) To act as an indicator
d) To act as an analyte
What is the role of distilled water in a titration?
a) To act as a buffer
b) To act as a titrant
c) To act as an indicator
d) To act as a solvent
What is the role of a buffer in a titration?
a) To maintain the pH of the solution
b) To act as a titrant
c) To act as an indicator
d) To act as a solvent
What is the role of a solvent in a titration?
a) To maintain the pH of the solution
b) To act as a titrant
c) To act as an indicator
d) To dissolve the analyte and the titrant
What is the role of a titrant in a titration?
a) To maintain the pH of the solution
b) To react with the analyte
c) To act as an indicator
d) To act as a solvent
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