Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Organic Chemistry – Some Basic Principles and Techniques

Short Answer Type

201.

Describe the main characteristic features of resonance.

108 Views

202.

Write resonance structures of CH₃COO^– and show the movement of electrons by curved arrows.

509 Views

203.

Write resonance structure of C₆H₅NH₂ and show the movement of electrons by curved arrows.

720 Views

204. Which of the following pairs of structures do not constitute resonance structures?

226 Views

205. Draw the resonance structures for the following compounds. Show the electron shift using curved arrow notation:
$straight C subscript 6 straight H subscript 5 OH space left parenthesis Phenol right parenthesis$

Write the structures and put unshared pairs of valence electrons on appropriate atoms. Then draw the arrows to indicate the movement of electrons.
C₆H₅OH (Phenol):

117 Views

206. Draw the resonance structures for the following compounds. Show the electron shift using curved arrow notation:

straight C subscript 6 straight H subscript 5 NO subscript 2 thin space left parenthesis Nitrobenzene right parenthesis

104 Views

207. Draw the resonance structures for the following compounds. Show the electron shift using curved arrow notation:
CH₃CH = CHCHO

337 Views

208. Draw the resonance structures for the following compounds. Show the electron shift using curved arrow notation:

straight C subscript 6 straight H subscript 5 minus CHO

152 Views

209. Draw the resonance structures for the following compounds. Show the electron shift using curved arrow notation:

straight C subscript 6 straight H subscript 5 space minus space straight C with plus on top straight H subscript 2

103 Views

210. Draw the resonance structures for the following compounds. Show the electron shift using curved arrow notation:

CH subscript 3 CH space equals space CH straight C with plus on top straight H subscript 2

98 Views