Alkanes, alkenes, alkynes, aromatic hydrocarbons; preparation and reactions.
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Q1 · Hydrocarbons (Class 11 — ~20% weight) · MEDIUM
When propene reacts with HBr in the presence of peroxide, the major product formed is:
Q2 · Hydrocarbons (Class 11 — ~20% weight) · EASY
The number of sigma bonds and pi bonds present in ethyne (acetylene) molecule is:
Q3 · Hydrocarbons (Class 11 — ~20% weight) · HARD
Benzene on treatment with concentrated HNO3 and concentrated H2SO4 at 50-60°C gives nitrobenzene. If this reaction is carried out at a higher temperature (around 100°C) with excess of the nitrating mixture, the major product formed is:
Q4 · Hydrocarbons (Class 11 — ~20% weight) · EASY
Which of the following alkenes will show geometrical isomerism?