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- What common produce items might you see paraffin waxes being used on? (b) What consumer products are manufactured with ethene and propene?Explain auto catalytic ethylene production.Shown below are absorption spectra for four pigment molecules. Which of these pigments are responsible for giving carrots their orange color? A) A B) B C) C D) D
- (g) The figure given below represents an experiment to demonstrate a particular aspect of photosynthesis. The alphabet 'A' represents a certain condition inside the flask. 2 КОН (i) What is the aim of the experiment ? (ii) Identify the special condition inside the flask. (iii) Name an alternative chemical that can be used instead of KOH. (iv) In what manner do the leaves 1 and 2 differ at the end of the starch test ?A coal fire plant uses 1 kg of coal to generate 1000 kWh of electricity and emits 50 kg of CO2 and 5 kg of SO2 per day. (1) If the functional unit is 1 kWh of electricity, please relate the emissions to FU. (2) What are the emissions for a plant generating 2000 kWh of electricity? (3) What if the functional unit is 1000 kWh? (4) What if the functional unit is 1000 MJ of energy? (5) What is the functional unit is 1kg of coal?Chlorophyll reflects green light (540–560 nm) and absorbs other wavelengths. What biologically important molecules other than chlorophyll absorb and reflect certain colors?
- in which of the following alternatives is the greatest amount of energy released from the hydrogenation of:a) 1 mole propeneb) 1 mole of butadiene 1.3c) 1 mole pentyn-2d) 3 moles of etheneWhere will lignin degrade faster: in a shallow riverbed or in a rice paddy? Explain.a) Label PSI Diagram 6 and PSII. Thylakold stroma b) Draw the path of the electron transport chain Thytakoid lumen