1. Which one of the following compounds is capable of existing in a meso form?

2. Both geometrical and optical isomerisms are exhibited by

3. The most suitable reagent for the conversion of primary alcohol into aldehyde with the same number of carbon is

4. Which among the following statements is correct with respect to the optical isomers?

5. Pick out the correct statements
1.If a compound has no asymmetric carbon atom it is always achiral
2.If a compound has just one asymmetric carbon atom, it is chiral
3.If a compound has more than one asymmetric carbon atom, it may or may not be chiral

6. A hydrocarbon of molecular formula $C_6{H}_{10}$ reacts with sodamide and the same on ozonolysis followed by hydrogen peroxide oxidation gives two molecules of carboxylic acids, one being optically active.Then the hydrocarbon may be

7. A pure dextrorotatory monocarboxylic acid is treated with racemic mixture of alcohol containing one chiral carbon. The ester formed will be

8. The number of optical isomers of ${\mathrm{CH}}_3\mathrm{CH}(\mathrm{OH})\mathrm{CH}(\mathrm{OH})\mathrm{CHO}\mathrm{is}$

9. Phenol can be distinguished from ethanol by the following reagents except

10. consider the following representation

They are

11. Match the list I and II and pick the correct matching from the codes given below
$\begin{array}{cccc}& \mathrm{List}1& & \mathrm{List}\mathrm{II}\\ a\mathrm{.}& \mathrm{Propane}-1,2,3-\mathrm{triol}& 1.& \mathrm{Cyclic}\mathrm{ether}\\ b\mathrm{.}& \mathrm{Ethane}-1,2-\mathrm{diol}& 2.& \mathrm{Absolute}\mathrm{ethanol}+\mathrm{petrol}\\ c\mathrm{.}& \mathrm{Tetrahydrofuran}& 3.& \mathrm{Dynamite}\\ d\mathrm{.}& \mathrm{Power}\mathrm{alcohol}& 4.& \mathrm{Denatured}\mathrm{alcohol}\\ e\mathrm{.}& \mathrm{Methylated}\mathrm{spirit}& 5.& \mathrm{Terylene}\end{array}$

12. Iodoform cannot be prepared by reacting which of the following with NaOH and iodine

13. Choose the correct acidity order of the following Phenols

14. Identity C in the following scheme
C$H_{3}C{H}_{2}C{H}_2\mathrm{OH}\stackrel{\mathrm{PC}{l}_5}{⟶}A\stackrel{\mathrm{Achoholic}\mathrm{KOH}}{⟶}B\underset{(2)H_{2}O\mathrm{.}\mathrm{heat}}{\overset{(1)\mathrm{conc}\mathrm{.}{H}_{2}S{O}_4}{⟶}}$C

15. Given below are conformations of butane. Which conformation is the most stable?

16. Ethylene glycol is added to water as an antifreeze. It will

17. Which of the following reacts fastest with a mixture of anhydrous ZnC$l_2$ and HCl

18. The boiling point of methanol is greater than that of methyl thiol, because

19. Ethylene glycol reacts with excess of PC$l_5$to give

20. Which of the following compounds will exhibit cis-trans isomerism?

21. Cis-trans isomers generally

22. The two optical isomers given below, namely

23. Of the following, the compound possessing optical isomerism is

24. A compound whose molecules are super imposable on their mirror images even though they contain asymmetric carbon atoms is called

25. The process of eutrophication is due to

26. The environmental friendly method of killing harmful insects is through the use of

27. CC$l_4$is a well known fire extinguisher. However after using it to extinguish fire, the room should be well ventilated. This is because

28. Match the lists I and II and pick the correct matching from the codes given below
$\begin{array}{cc}\mathrm{List}1(\mathrm{Halo}\mathrm{alkane}/\mathrm{arane})& \mathrm{List}\mathrm{II}(\mathrm{applications})\\ a\mathrm{.}\mathrm{Idoform}& 1.C{F}_{2}C{l}_2\\ b\mathrm{.}\mathrm{BHC}& 2.\mathrm{antiseptic}\\ c\mathrm{.}\mathrm{Freon}-1,2& 3.\mathrm{moth}\mathrm{repellent}\\ d\mathrm{.}\mathrm{Halothanes}& 4.\mathrm{Inhalative}\mathrm{anesthetic}\\ e\mathrm{.}P-\mathrm{dichlorobenzene}& 5.\mathrm{Termite}\mathrm{pesticide}\end{array}$

29. Which of the following is not in greenhouse gas?

30. Pick up the correct statement

31. chlorination of toluene in presence of light and heat followed by treatment with aqueous NaOH gives

32. When 32.25g of ethylchloride is subjected to dehydrohalogenation reaction the yield of the alkene formed is 50%. The mass of the product formed is (atomic mass of chlorine is 35.5)

33. The raw materials for the commercial manufacture of DDT are

34. Which one of the following molecules is achiral?

35. An organic compound A($C_4{H}_9\mathrm{Cl})\mathrm{on}$reaction with Na/diethyl ether gives a hydrocarbon, which on monochlorination gives only one chloro derivative.A is

36. 1,2 Dibromoethane when heated with alcoholic potash gives

37. Which one of the following compound reacts with Chlorobenzene to produce DDT?

38. The compound that does not answer iodoform test is

39. Wurtz reaction involves the reduction of alkyl halide with

40. Ozone is formed in the upper atmosphere from oxygen by the action of

41. Alkyl halides react with metallic sodium in dry ether producing

42. An organic compound with molecular formula $C_6{H}_{12}$ upon ozonolysis gave only acetone as the product. The compounds is

43. Which of the following exists as Zwitter ion?

44. Match the list I and II and pick the correct matching from the codes given below

45. Which of the following does not undergo Cannizzaro's reaction?

46. ${\mathrm{CH}}_3-\mathrm{CHO}+\mathrm{HCN}\to A$ compound A on hydrolysis gives

47. $C{H}_3\mathrm{CHO}+\mathrm{HCHO}\underset{\mathrm{Heat}}{\overset{\mathrm{dil}\mathrm{.}\mathrm{NaOH}}{⟶}}$A $\underset{H_{3}O}{\overset{\mathrm{HCN}}{⟶}}$B, the structure of compound B is

48. The reaction of o-chloroaniline with a mixture of HCl and NaN$O_2$followed by cuprous bromide will give

a)
b)
c)
d)

49. IUPAC name of Acraldehyde is

50. The reagent with which both acetaldehyde and acetophenone react easily are