Organic Chemistry Multiple Choice Questions and Answers – Quantitative and Qualitative Analysis

Questions
1 Identify the one which does not come under the chemical methods of quantitative analysis?
A Gravimetric
B Titrimetric
C Volumetric
D Magnetic suceptibility

Answer: Magnetic suceptibility
2 Quantitative analysis is one which is used for separating out the specific constituents from a mixture.
A True
B False

Answer: False
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3 Select the incorrect statement regarding analytical balance.
A It is the fundamental kit in quantitative analysis
B It measures samples very accurately
C It could measure the difference in mass upto 0.1 mg
D It is not a sensitive instrument

Answer: It is not a sensitive instrument
4 Which among the following is not a physical method?
A X-ray fluorescence spectroscopy
B Atomic emission spectroscopy
C Inert gas fusion
D Trace element analysis

Answer: Inert gas fusion
5 Select the inappropriate statement regarding quantitative analysis.
A It helps in determining the outcome of the product
B It helps in determining the impurities in the sample
C It fails to indicate the presence of lead in some compound
D It could identify the amounts of dosage present in the drug

Answer: It fails to indicate the presence of lead in some compound
6 Identify the test which is not a part of qualitative analysis?
A Litmus test
B Kastle-Meyer test
C Iodine test
D Flame test

Answer: Litmus test
7 Covalent molecules can be identified using quantitative methods.
A False
B True

Answer: False
8 Identify the reagent which is not commonly used in qualitative analysis?
A 6M NaOH
B 6M HCl
C 6M HNO3
D 6M NH4

Answer: 6M NH4
9 Select the correct statement about the reagent 6M HNO3.
A It forms hydroxo complexes
B It destroys hydroxo and ammonia complexes
C It forms NH3 complexes
D It decreases the H+ ion concentration

Answer: It destroys hydroxo and ammonia complexes
10 Identify the incorrect statement regarding the reagent 6M NH3.
A It increases hydroxide and NH3 concentration
B It decreases H+ concentration
C It is capable of precipitating insoluble hydroxides
D It is capable of forming hydro complexes

Answer: It is capable of forming hydro complexes

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