CHEMISTRY MAX.
MARKS: 100
SECTION – I
(SINGLE CORRECT ANSWER TYPE)
This section contains 20 multiple choice questions. Each question has 4 options (1), (2), (3) and (4) for its
answer, out of which ONLY ONE option can be correct.
Marking scheme: +4 for correct answer, 0 if not attempted and -1 if not correct.
26. Match the column
1) a = q, b = s, c = p, d = r 2) a = q, b = p, c = s, d = r
3) a = p, b = q, c = r, d = s 4) a = p, b = q, c = s, d = r
27. Match the column
1) a = p, b = s, c = r, d = q 2) a = r, b= p, c = s, d = q
3) a = r, b = s, c = p, d = q 4) a = s, b = p, c = q, d = r
28. Match the column-I and column-II
1) a-r, b-s, c-p, d-q 2) a-s, b-r, c-q, d-p
3) a-s, b-q, c-r, d-p 4) a-q, b-p, c-r, d-s
29. Given below are two statements; one is labeled as Assertion (A) and the other is
labeled as Reason(R).
Assertion (A) : Anisole on reaction with HI gives phenol and methyl iodide.
Reason(R) : Phenyl-oxygen bond is stronger than methyl-oxygen bond in anisole
and hence is not cleaved by HI.
In the light of the above statements, choose the most appropriate answer from the
options given below:
1) Both (A) and (R) are correct and (R) is the correct explanation of (A)
2) Both (A) and (R) are correct but (R) is not the correct explanation of (A).
3) (A) is correct but (R) is not correct.
4) (A) is not correct but (R) is correct.
30. Which compound would give 5-keto-2-methyl hexanal upon ozonolysis?
1) 2)
3) 4)
31. The major product in the following reaction is
1)
2)
3)
4)
32. The most suitable reagent for the conversion of R — CH2 — OH R — CHO is
1) KMnO4
2) K2Cr2O7
3) CrO3
4) PCC (pyridinium chlorochromate)
33. The major product ‘X’ formed in the following reaction is
1)
2)
3)
4)
34. The major product of the following reaction is
1) 2)
3) 4)
HI
35. P Q Anisole R S . Correct statement among the following is
1) P and Q are C6H5ONa and C2H5Cl
2) R and S are C6H5I and CH3OH
3) R and S are C6H5OH and CH3I
4) P and Q are C6H5Cl and CH3ONa
HI
36. CH3 3 COCH3 CH3 3 CI CH3OH the mechanism is
1) SN1 2) SN 2 3) E1 4) E2
37. The major product obtained when tert-butyl bromide is heated with sodium
ethoxide is
1) 2-Methyl-1-propene 2) Ethene
3) tert-Butyl methyl ethar 4) Diethyl ether
38. Correct order of boiling point is
1) EtCl > EtOH 2) EtOH > AcOH 3) EtOH Me2O 4) EtNH2 EtOH
39. Anisole with conc. HNO3 and conc. H2SO4 gives
1) Phenol 2) Nitrobenzene
3) o- and p-Nitroanisole 4) o-Nitroanisole
40. The solvent used in Etard’s reaction during the formation of benzaldehyde from
toluene is
1) acetic acid 2) water 3) liq. NH3 4) CS2
41. Alkaline hydrolysis of gemdihalides gives
1) aldehydes only 2) ketones only
3) carbonyl compounds 4) Ethers
42. The alkene which on ozonolysis gives acetaldehyde and acetone is
1) CH3 2) CH3 – CH CH – CH2 – CH3
|
CH3 – CH C – CH3
3) CH2 CH – CH3 4) CH3 2 C C CH3 2
43. Formaldehyde is treated with methyl magnesium iodide in dry ether and finally
with water. The product obtained is
1) Isopropyl alcohol 2) Ethyl alcohol
3) Methyl alcohol 4) n-Propyl alcohol
Cu
44. Ethyl alcohol
3000 C
A B . What are A & B
1) Acetaldehyde, Acetone 2) Acetone, Water
3) Acetaldehyde, H2 4) Acetone, H2
NaCN H O
45. CH3 2 CO HCl A
3
B In the above sequence of reactions A and B are
1) CH3 2 C OH CN, CH3 2 C OH COOH
2) CH3 2 C OH CN, CH3 2 C OH2
3) CH3 2 C OH CN, CH3 2 CHCOOH
4) CH3 2 C OH CN, CH3 2 C O
SECTION-II
(NUMERICAL VALUE ANSWER TYPE)
This section contains 10 questions. The answer to each question is Numerical values. If the answer in the
decimals. Mark nearest integer only. Have to answer any 5 only out of 10 questions and question will be
evaluated according to the following marking scheme: Marking scheme: +4 for correct answer, -1 in all
other cases.
46.
47. How many of the following can convert
R – CH2 – OH R – CHO
1. KMnO4 2. CH3MgBr 3. K2Cr2O7 4. H2O2
5. PCC 6. CAN 7. CrO3 8. Cu tube / 573K.
48. Number of C-atom in final product
SOCl2 benzene HCN H3O
CH3COOH A
Anhy.AlCl3
B C D
49. In IUPAC name of
OHC – CH2 – CH – CH2 – CHO
|
CHO
Sum of all numbers =
