C11

Organic chemistry quiz Duration: 45 minutes Total marks: 22 Answer all questions. Show structural formulae clearly and include reaction conditions where requested. Section A: Multiple choice (5 marks) Q1 (1 mark) Which is the general formula for alkenes? A. $C_nH_{2n+2}$ B. $C_nH_{2n}$ C. $C_nH_{2n+1}OH$ D. $C_nH_{2n+1}COOH$ Q2 (1 mark) Which change occurs from the bottom to the top of a fractional distillation column? A. Chain length increases. B. Boiling point increases. C. Volatility increases. D. Viscosity increases. ...

Organic chemistry marking scheme This is the marking scheme for quiz: C11 - Organic Chemistry Quiz Topic Guide: C11 - Organic Chemistry Total marks: 22 Accept equivalent displayed or structural formulae where bonds and atom connections are unambiguous. Section A: Multiple choice (5 marks) Q1 (1 mark) B — Alkenes have general formula $C_nH_{2n}$. [1] Q2 (1 mark) C — Volatility increases from the bottom to the top of the column. [1] ...