1.
Liquidhydrocarbons can be converted to a mixture of gaseous hydrocarbons by
2.
Most stable conformation of n-butane is
3.
Which reaction gives hydrocarbon in good yield?
4.
Most desirable hydrocarbon type in commercial gasoline
5.
Most stable configuration of n-butane
6.
Distance between adjacent carbon atoms is largest in
7.
Chain initiating step in free radical chlorination of methane involves formation of
8.
Compound with the lowest boiling point
9.
Reactivity of hydrogen atoms attached to different carbon atoms in alkanes has the order
10.
The correct structure of 2,6-dimethyl-dec-4-ene is
11.
An alkene on ozonolysis gives methanal as one of the products. Its structure is
12.
An alkene ‘A’ reacts with O₃/Zn-H₂O to give propanone and ethanal. Addition of HCl to alkene ‘A’ gives ‘B’ as the major product. The structure of ‘B’ is
13.
Which of the following molecules represents the order of hybridization sp², sp², sp, sp from left to right atoms?
14.
2,3-Dimethyl-2-butene can be prepared by heating which compound with strong acid?
15.
Which compound shall not produce propene by reaction with HBr followed by elimination or direct elimination?
16.
HC≡C–CH(CH₃)₂ + HBr → A. What is the major product A?
17.
Which of the following compounds (C₅H₁₀) yields acetone on ozonolysis?
18.
Which one of the following alkenes will react faster with H₂ under catalytic hydrogenation?
19.
Reaction of HBr with propene in the presence of peroxide gives?
20.
CH₃C(CH₃)=CHCH₃ on reaction with NaIO₄ and KMnO₄ gives?
21.
Which alkene on ozonolysis gives CH₃CH₂CHO and CH₃COCH₃?
22.
Among alkenes: I = 1-butene, II = trans-2-butene, III = cis-2-butene; decreasing order of stability is?
23.
In the reaction CH₂=CH₂ + HOCl → M → R, M and R are?
24.
A hydrocarbon A adds H₂ to form n-hexane. When HBr is added to A, only one bromo product forms. Identify A.
25.
When 3,3-dimethyl-2-butanol is heated with conc. H₂SO₄, the major product is?
26.
R–CH=CH₂ reacts with B₂H₆ and after oxidation with alkaline H₂O₂ gives?
27.
How many (i) sp² hybrid carbon atoms and (ii) π-bonds are present in the compound shown?
28.
Most suitable reagent for converting alkyne to cis-alkene is?
29.
No. of σ and π bonds in pent-2-en-4-yne?
30.
Correct order of acidity:
31.
In the reaction involving NaNH₂/liquid NH₃ followed by CH₃CH₂Br twice, X and Y are?
32.
Which reagent distinguishes between 1-butyne and 2-butyne?
33.
Predict product C when 1-butyne reacts with HCl and then HI?
34.
Products of ozonolysis of CH₃C≡CCH(CH₃)₂ followed by hydrolysis?
35.
Acetylene + H₂SO₄/HgSO₄ → Product?
36.
Cylindrical shape of alkyne is due to?
37.
Compound that gives sodium salt with NaNH₂?
38.
Reduction of 2-butyne with Na/liquid NH₃ gives predominantly?
39.
R–CHCl₂ + Reagent → R–C≡C–R. The reagent is?
40.
True statement about benzene?
41.
Compound with shortest C–C bond length?
42.
Shortest C–C bond distance found in?
43.
Reagent to distinguish compound III (CH₃CH₂C≡CH)?
44.
Why are acetylenic hydrogens acidic?
45.
HC≡CH passed over red hot Fe tube at 873 K → Product A. No. of σ bonds in A?
