Which is the most suitable reagent among the following to distinguish compound (III) from rest of the compounds?
I. CH3-CC-CH3
II. CH3-CH2-CH2-CH3
III. CH3-CH2-CCH
IV. CH3-CH=CH2
1. Br2/CCl4 2. Br2/CH3COOH
3. Alk.KMnO4 4. Ammonical AgNO3
Which of the following reagents will be able to distinguish between 1-butyne and 2-butyne?
1. NaNH2
2. HCl
3. O2
4. Br2
A compound is treated with NaNH2 to give sodium salt. Identify the compound.
1. C2H2 2. C6H6
3. C2H6 4. C2H4
Propene, CH3-CH=CH2 can be converted into 1-propanol by oxidation. Indicate which set of reagents amongst the following is ideal to effect the above conversion?
1. KMnO4(alkaline)
2. Osmium tetroxide (OsO4/CH2Cl2)
3. B2H6 and alk H2O2
4. O3/Zn
In Friedel-Craft's synthesis of toluene, the reactants in addition to anhydrous AlCl3 are
1. C6H5Cl + CH4
2. C6H5Cl + CH3Cl
3. C6H6 + CH4
4. C6H6 + CH3Cl
A compound having the shortest carbon-carbon bond length among the following is :
1. Benzene
2. Ethene
3. Ethyne
4. Ethane
Reaction of HBr with propene in the presence of peroxide gives
1. iso-propyl bromide
2. 3-bromo propane
3. allyl bromide
4. n-propyl bromide
The reaction of toluene with in the presence of gives 'X' and reaction in presence of light gives 'Y'. Thus, 'X' and 'Y' are
1. X = benzal chloride, Y= o-chlorotoluene
2. X = m-chlorotoluene, Y= p-chlorotoluene
3. X = o and p-chlorotoluene, Y = trichloromethyl benzene
4. X = benzal chloride, Y = m-chlorotoluene
The reaction,
+ + HCl
is an example of:
1. Friedel-Crafts reaction
2. Kolbe's synthesis
3. Wurtz's reaction
4. Grignard synthesis
Acetylene reacts with 42% containing 1% to give:
1.
2.
3. HCHO
4.
Ozonolysis (, ) of, gives :
1. +
2. +
3. +
4. none of the above
.
The reagent is:
1. Na
2. HCl in
3. NaNH2
4. Zn in alcohol
Consider the following reaction sequence
Product is
(1) | |
(2) | |
(3) | |
(4) |
Product (A) of the reaction is :
1. \(\mathrm{CH}_3-\mathrm{CH}_3\)
2. \(\mathrm{CH}_2=\mathrm{CH}_2\)
3. \(\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}_2\)
4. None of these
Which of the following bromides is the major product of the reaction shown below, assuming that there are no carbocation rearrangement?
1.
2.
3.
4.
Compound (A) is :
1.
2.
3.
4.
Product of the reaction is :
1.
2.
3.
4.
Product; Product is:
MCPBA Metachloroperbenzoic acid
1.
2.
3.
4.
What is the major product expected from the following reaction?
Product
1.
2.
3.
4.
(A) (Major)
Major product (A) of the above reaction:
1.
2.
3.
4.
Compound (C) in above sequence of reaction is:
1.
2.
3.
4.
; Product (B) is :
1.
2.
3.
4. Br-(CH2)12-CH=CH
In the above compound, Cl will liberate easily in the form of-
1.
2. Cl-
3. Cl
4. Cl2+
The compound X in the above reaction is-
1. | 2. | ||
3. | 4. |
Benzene reacts with CH3Cl in the presence of anhydrous AlCl3 to form.
1. toluene
2. chlorobenzene
3. benzylchloride
4. xylene
the compound 'A' is
1. 2.
3. 4.
the compond 'A' is
1. 2.
3. 4. No Reaction
A (Major),
the compound 'A' is
1.
2.
3.
4. No Reaction
Which compound is most reactive towards electrophilic substitution reaction?
1. 2.
3. 4.
has the configuration
1. R,R 2. S,S
3. R,S 4. May be (1) or (2)
Which compound cannot show conformational isomerism?
1. 2.
3. 4.
Total number of optical isomers obtained after monohalogenation of 3-Methyl pentane are:
1. 2 2. 4
3. 6 4. 8
, the decreasing order of bond length will be
1. I>II>III 2. II>III>I
3. III>II>I 4. II>I>III
The IUPAC name of is
1. Bicyclo [0,1,2] pentane
2. Bicyclo [2,1,0] hexane
3. Bicyclo [2,1,0] pentane
4. Bicyclo [2,2,1] pentane
The IUPAC name of is
1. 3-Carboxy Pentan-1,5- dioic acid
2. Propane- 1,2,3- tricarboxylic acid
3. 1,2,3- tricarboxylic propane
4. All of these
Which conformational form of 2-Fluro ethanol is most stable?
1. Anti 2. Partially eclipsed
3. Full esclipsed 4. Gauche
Which alkene has smallest heat of hydrogenation?
1. 2.
3. 4.
Products of the following reaction :
1. CH3COOH + CH3COCH3
2. CH3COOH + HOOC. CH2CH3
3. CH3CHO + CH3CH2CHO
4. CH3COOH + CO2
In the following reaction:
The end product is
1. m-bromotoluene
2. o-bromotoluene
3. 3-bromo-2, 4, 6-trichlorotoluene
4. p-bromotoluene
Reaction of alkene and peracid gives oxirane. This reaction is named as-
1. Peroxidation
2. Oxidation
3. epoxydation
4. None
is
2.
3.
4.
Ozonolysis of 2,3-dimethylbut-1-ene followed by reduction with zinc and water gives
1. methanoic acid and 3-methyl-2-butanone
2. methanal and 3-methyl-2-butanone
3. methanal and 2-methyl-3-butanone
4. methanoic acid and 2-methyl-3-butanone
In a set of reactions ethyl benzene yield a product D.
D would be
1. 2.
3. 4.
The product (s) obtained via oxymercuration-demercuration of butyne would be
1. 2.
3. 4.
Z is
1.
2.
3.
4.