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Free download in PDF Organic Chemistry Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like UPSC, NDA, SSC etc. These short solved questions or quizzes are provided by Gkseries./p>
(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.
(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
(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
(7)
Covalent molecules can be identified using quantitative methods.
(8)
Identify the reagent which is not commonly used in qualitative analysis?
[A]
6M NaOH
[B]
6M HCl
[C]
6M HNO3
[D]
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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