#### Carbonyl Compounds Two Marks Questions

12th Standard EM

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Chemistry

Time : 00:45:00 Hrs
Total Marks : 20
10 x 2 = 20
1. How is propanoic acid is prepared starting from
(a) an alcohol
(b) an alkylhalide
(c) an alkene

2. A Compound (A) with molecular formula C2H3N on acid hydrolysis gives(B) which reacts with thionylchloride to give compound(C). Benzene reacts with compound (C) in presence of anhydrous AlCl3 to give compound(C). Compound (C) on reduction with gives (D). Identify (A), (B), (C) and D. Write the equations.

3. Identify X and Y.
${ CH }_{ 3 }CO{ CH }_{ 2 }{ CH }_{ 2 }COO{ C }_{ 2 }{ H }_{ 5 }\overset { { CH }_{ 3 }MBgr }{ \longrightarrow } X\overset { { H }_{ 3 }{ O }^{ + } }{ \longrightarrow } Y$

4. Identify A, B and C

5. A hydrocarbon A (molecular formula C8H10)on ozonolysis gives B (C4H6O2) only. Compound C (C3H5Br) on treatment with magnesium in dry ether gives (D) which on treatment with CO2 followed by acidification gives(C). Identify A) Band C.

6. State the laws of reflection

7. What is angle of deviation due to reflection?

8. Give the characteristics of image formed by a plane mirror.

9. Derive the relation between f and R for a spherical mirror.

10. What are the Cartesian sign conventions for a spherical mirror?