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This question is about the analysis of organic compounds. For each pair of compounds in Questions 01.1 and 01.2, give a reagent (or combination of reagents) that could be added separately to each compound in a single reaction to distinguish between them. State what is observed in each case. 0 1 . 1 CH3CH2CH2CHO and CH3CH2CH(OH)CH3 [3 marks] Reagent(s) Observation with CH3CH2CH2CHO Observation with CH3CH2CH(OH)CH3 0 1 . 2 Cyclohexane and cyclohexene [3 marks] Reagent(s) Observation w...

This question is about the elements in Period 3. 0 1 . 1 Give the full electron configuration of the element in Period 3 with the highest first ionisation energy. [1 mark] 0 1 . 2 Give an equation, including state symbols, to represent the process that occurs when the second ionisation energy of sodium is measured. [1 mark] 0 1 . 3 Table 1 shows some successive ionisation energies for an element in Period 3. Table 1 Ionisation number 1 2 3 4 5 6 7 8 Ionisation energy / kJ mol– Ide...

Analyse why Logger Boards Ltd prioritises meeting environmental objectives when making operational decisions. [12 marks

Read the information below and then answer the questions that follow. AJS plc AJS plc is a manufacturer of non-recyclable packaging. This packaging is widely used by takeaway food outlets. AJS plc plans to invest £500 000 in new technology to increase capacity and make its factory more capital intensive. Appendix A Data on proposed investment (produced by AJS plc’s operations manager) Year Annual net cash flow £000s Discount factor (10%) 0 (500) 1.00 1 (50) 0.91 2 250 0.83 3 600...

Which of the following will cause spare capacity in a business to rise? [1 mark] A New competitors are entering the market. B The business closes some factories. C The business’s product becomes more fashionable. D There is a successful advertising campaign. 0 2 Statement 1: ‘Value added can be increased by creating barriers to entry.’ Statement 2: ‘Value added can be increased by lowering unit costs.’ Read statements 1 and 2 and select the correct option from the following: [...

A company decides to rely only on decision trees to decide whether to accept a project. If decisions are based on the financial outcome, what is the most important factor in these decisions? [1 mark] A Expected value B Initial cost C Net gain D Probability of success 0 2 When will a business’s corporate objectives be agreed? [1 mark] A After its mission and after its financial objectives B After its mission and before its financial objectives C Before its mission and after its fina...

Describe how stimulation of a Pacinian corpuscle produces a generator potential. [3 marks] Scientists investigated the stimulation of a Pacinian corpuscle in the skin of a fingertip. The scientists applied two different pressures to the fingertip and recorded the changes in membrane potential of the Pacinian corpuscle’s sensory neurone. Figure 1 shows the scientists’ result

A student used chromatography to separate the different photosynthetic pigments in a chlorophyll solution. She had the following materials. Chromatography paper A ruler and pencil Suitable glassware A solvent (solvent A) 2 cm3 of the chlorophyll solution Describe how she could use these materials to separate the photosynthetic pigments by chromatography. [4 marks] 0 1 . 2 Using solvent A, the student separated five pigments. She then repeated her method using a different solvent, B. U...

Give the three structural features found in all virus particles and describe the function of one of these features. [2 marks] 1 2 3 Function of one named feature 0 1 . 2 Explain why viruses are described as acellular and non-living. [2 marks] 0 1 . 3 Give one reason why antibiotics are not effective against viruses. [1 mark