Waec Model Questions Vol1 2018 Chemistry Question 8

Practice objective / multiple choice question 8 from the 2018 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2018 Chemistry Objective / Multiple Choice Medium Difficulty
Question 8 WAEC_MODEL_QUESTIONS_VOL1 • 2018 • CHEMISTRY • objective

The compound 1‑phenyl‑1‑butene (C₁₀H₁₂) is reacted with bromine (Br₂) in carbon tetrachloride at 0 °C. (a) Write the IUPAC name of the major product formed by anti‑addition of Br₂ across the double bond. (b) If 5.00 g of the alkene is used with excess Br₂ and the reaction proceeds with 100 % yield, calculate the mass of the product obtained (in grams). Use molar masses: C₁₀H₁₂ = 132.20 g mol⁻¹, Br₂ = 159.80 g mol⁻¹, C₁₀H₁₂Br₂ = 231.00 g mol⁻¹. Give the mass to two decimal places.

Answer Options

A. 1,1-dibromo-1-phenylbutane; 8.74 g
Correct Answer B. 1,2-dibromo-1-phenylbutane; 8.74 g
C. 1,2-dibromo-2-phenylbutane; 9.12 g
D. 1,2-dibromo-1-phenylbutane; 7.85 g
Correct Answer
B
Correct Option:
1,2-dibromo-1-phenylbutane; 8.74 g

About This Question

This is Waec Model Questions Vol1 2018 Chemistry Question 8. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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