Give the IUPAC names of any two of the following compounds: 2xl=2 <img src='./qimages/9455-1a.jpg'> Write the structural formula of anyone of the following: N,N-dimethylaminoethanoic acid
Phenylmethanal
Assign R or S configuration to anyone of the following giving the order of priorities of groups attached to the chiral centre <img src='./qimages/9455-1c.jpg'> Assign E or Z configuration to anyone of the following giving the order of priorities of groups attached to the double bond: <img src='./qimages/9455-1d.jpg'>

2.(a) Predict the product of the following reactions of 1-butyne <img src='./qimages/9455-2a.jpg'> Write the structure of the product(s) obtained on treating furan with the following: H2, catalyst

(ii) SO3, pyridine Complete the following reactions <img src='./qimages/9455-2c.jpg'> Give the products of ozonolysis of 2-methyl-2-hexene. What is a Zwitter ion? Give an example. Why are aryl amines less basic than aliphatic amines Which of the following compounds is aromatic? Explain.

<br><br> <img src='./qimages/9455-2g.jpg'>

3. Attempt any five of the following:
What is Saytzeffs rule Give an example to explain it. Give a chemical test to distinguish between primary, secondary and tertiary alcohols. What is Beilstein's test How will you distinguish between

<br><br> <img src='./qimages/9455-3c.jpg'>
Give the general mechanism of SN1 reactions. How will you distinguish between the primary, secondary and tertiary amines using Hinsberg's test? Draw the eclipsed and staggered conformations of ethane in Newman representation. Which of these conformations is more stable and why? Give three differences between resonance and tautomerism.

4. Attempt any five of the following:

(a) Give chemical reactions for any four of the following.: Cannizzaro reaction

(ii) Mannich reaction

(iii) Gattermann-Koch synthesis
Strecker synthesis 'Rosenmund's reduction Explain the following terms: Auxochrome

(ii) Fingerprint region

(iii) Base peak
Coupling constant value) on reaction with aqueous HBr gives 2-bromo-2,3-dimethylbutane. Explain the mechanism. Give products of the following: <img src='./qimages/9455-4d.jpg'> How will you prepare 3-phenylpropanol using Grignard reagent?
Why is ethyne more acidic than ethene?
Give the mechanism of electrophilic substitution on naphthalene at I-position giving resonance structures of the intermediate carbocation.
Give one example for each of the following class of compounds Alkaloid

(ii) Antibiotic

(iii) Steroid
Terpene