What is carbon-carbon bond length in benzene?
- ✓138 pm
- B120 pm
- C154 pm
- D144 pm
Answer: A.
View full solution →Question types
Hydrocarbons question types
319 questions across 6 question groups — pick any mix to generate a Chemistry paper with step-by-step answer keys.
319
Questions
6
Question groups
5
Question types
01
MCQ
89 Q→02Answer the following questions:
68 Q→03Answer the following in one or two sentences.
68 Q→04Answer the following in brief.
57 Q→05Answer the following questions.
29 Q→06Answer the following questions in detail.
8 Q→Sample Questions
Hydrocarbons questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Which among the following metals is involved in preparation of Grignard reagent?
- ASilver
- ✓Magnesium
- CSodium
- DZinc
Answer: B.
View full solution →For the reaction $\mathrm{N}_{2(\mathrm{~g})}+3 \mathrm{H}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{NH}_{3(\mathrm{~g})}$, rate of disappearance of $\mathrm{N}_{2(\mathrm{~g})}$ is $2.22 \times 10^{-3} \mathrm{~mol} \mathrm{dm}^{-3}$. What is the rate of appearance of $\mathrm{NH}_{3(\mathrm{~g})}$ ?
- ✓$4.44 \times 10^{-3} \mathrm{~mol} \mathrm{dm}^{-3}$
- B$1.11 \times 10^{-3} \mathrm{~mol} \mathrm{dm}^{-3}$
- C$2.22 \times 10^{-3} \mathrm{~mol} \mathrm{dm}^{-3}$
- D$3.33 \times 10^{-3} \mathrm{~mol} \mathrm{dm}^{-3}$
Answer: A.
View full solution →Which among the following statements is NOT true about aliphatic compounds?
- ASaturated aliphatic compounds undergo substitution reactions.
- ✓These burn with sooty flame.
- CThese are easily attacked by oxidizing agent.
- DUnsaturated aliphatic compounds undergo addition reactions easily.
Answer: B.
View full solution →What product is obtained when alkyl halides react with metallic sodium in presence of dry ether?
- AAlkynes with same number of carbon atoms as in alkyl halide. A)
- BAlkenes with same number of carbon atoms as in alkyl halide.
- CAlkanes with same number of carbon atoms as in alkylhalide. Ω
- ✓Alkanes with double the number of carbon atoms as in alkyl halide
Answer: D.
View full solution →Arrange the following hydrocarbons in the increasing order of acidic character: propane, propyne, propene.
Predict the possible products of the following reaction: nitration of toluene
Predict the possible products of the following reaction: bromination of phenol
Predict the possible products of the following reaction: sulfonation of chlorobenzene
What are alkenes?
What methods are used for preservation of food?
How will you differentiate between soaps and synthetic detergent using borewell water?
How many monochlorination products are possible for 2-methylbutane ?
Draw their structures and write their IUPAC names.
Draw their structures and write their IUPAC names.
Alkanes and alkenes do not react with lithium amide. Give reason.
What is decarboxylation?
Why is food cooked? What is the difference in the physical states of uncooked and cooked food?
Can we use the same soap for bathing as well as cleaning utensils or washing clothes? Why?
Convert: 3-Methylbut-l-yne into 3-methylbutan-2-one
Convert: 1-Bromobutane to hex-1-yne
Write the structure of monomer from which each of the following polymers are obtained.
Write short note about hydrocarbon.
Prepare chart of hydrocarbons and note down the characteristics.
Write a short note on aromaticity.
Write a note on the directive influence of substituents (functional groups) in monosubstituted benzene.
Write a short note on the Kekule structure of benzene.
Differentiate between aromatic and aliphatic compounds.
By using the rules of aromaticity, explain whether the following compounds are aromatic or non$-$aromatic.
$i.$ Benzene $ii.$ Naphthalene $iii.$ Cycloheptatriene
View full solution →$i.$ Benzene $ii.$ Naphthalene $iii.$ Cycloheptatriene
Explain the resonance structures of benzene using the orbital overlap concept.
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