Explore topic-wise MCQs in Organic Chemistry.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Organic Chemistry knowledge and support exam preparation. Choose a topic below to get started.

1.

Which type of ionic species are allowed to pass through the slit and reach the collecting plate?

A. Negative ions of all masses
B. positive ions of the specific mass
C. Negative ions of the specific mass
D. Positive ions of all masses
Answer» C. Negative ions of the specific mass
Discussion
2.

Separation of ions in mass spectrometer take place on the basis of which of the following?

A. Mass
B. Charge
C. Molecular weight
D. Mass to charge ratio
Answer» E.
Discussion
3.

The spectrum of a compound with molecular formula C5H602 is shown below. IR spectrum shows medium intensity band at 3270 and 2180 cm-1. What will be the structure of compound? Chemical reference: 1.3 (3H, t); 2.8 (1H, s), 4.3 (2H, q).

A. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q10a.png"><img alt="The spectrum with molecular formula C5H602 shows medium intensity band at 3270 - option a" class="alignnone size-full wp-image-224161" height="74" src="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q10a.png" width="257"/></a>
B. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q10b.png"><img alt="The spectrum with molecular formula C5H602 shows medium intensity band at 3270 - option b" class="alignnone size-full wp-image-224162" height="75" src="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q10b.png" width="263"/></a>
C. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q10c.png"><img alt="The spectrum with molecular formula C5H602 shows medium intensity band at 3270 - option c" class="alignnone size-full wp-image-224163" height="87" src="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q10c.png" width="132"/></a>
D. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q10d.png"><img alt="The spectrum with molecular formula C5H602 shows medium intensity band at 3270 - option d" class="alignnone size-full wp-image-224164" height="89" src="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q10d.png" width="109"/></a>
Answer» C. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q10c.png"><img alt="The spectrum with molecular formula C5H602 shows medium intensity band at 3270 - option c" class="alignnone size-full wp-image-224163" height="87" src="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q10c.png" width="132"/></a>
Discussion
4.

A compound of molecular formula C8H7ClO shows a prominent band in its IR spectrum at 1690 cm-1. 1H NMR spectrum revealed only two major types of protons in the ratio of 5: 2. Which one of the following structures best fits the above data?

A. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q7a.png"><img alt="Compound shows prominent band in its IR spectrum at 1690 cm-1 in ratio of 5: 2- option a" class="alignnone size-full wp-image-224152" height="76" src="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q7a.png" width="186"/></a>
B. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q7b.png"><img alt="Compound shows prominent band in its IR spectrum at 1690 cm-1 in ratio of 5: 2- option b" class="alignnone size-full wp-image-224154" height="63" sizes="(max-width: 203px) 100vw, 203px" src="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q7b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q7b.png 203w, https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q7b-200x63.png 200w" width="203"/></a>
C. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q7c.png"><img alt="Compound shows prominent band in its IR spectrum at 1690 cm-1 in ratio of 5: 2- option c" class="alignnone size-full wp-image-224155" height="67" src="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q7c.png" width="192"/></a>
D. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q7d.png"><img alt="Compound shows prominent band in its IR spectrum at 1690 cm-1 in ratio of 5: 2- option d" class="alignnone size-full wp-image-224156" height="86" src="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q7d.png" width="183"/></a>
Answer» B. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q7b.png"><img alt="Compound shows prominent band in its IR spectrum at 1690 cm-1 in ratio of 5: 2- option b" class="alignnone size-full wp-image-224154" height="63" sizes="(max-width: 203px) 100vw, 203px" src="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q7b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q7b.png 203w, https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-mass-spectroscopy-q7b-200x63.png 200w" width="203"/></a>
Discussion
5.

A PMR spectrometer operates at 300 MHz. Find the value of magnetic field.
Given: gN = 5.585 and BN = 5.05 x 10-27 JT-I.

A. 7.05 T
B. 6.38 T
C. 7.58 T
D. 5.93 T
Answer» B. 6.38 T
Discussion