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In one overall reaction, a carbonyl compound, Compound A, reacts with methylmagnesium iodide and the product is then treated with water: Compound A + CH3MgI + H2O → Compound B + Mg(OH)I (i) State the IUPAC name of Compound A. (ii) Identify…
Compound B, shown below, can also be made by the hydration of an alkene. The same reaction also gives a smaller amount of the isomer 3-methylbutan-2-ol, (CH3)2CHCH(OH)CH3. (i) Draw the structural formula of the alkene that is needed. (ii) Deduce the…
Compound B is shown below. Deduce what would be observed when each of Compound B and pentan-2-ol is warmed separately with acidified aqueous potassium dichromate(VI).
Bromoethane can be converted into ethanol: CH3CH2Br + HO− → CH3CH2OH + Br− (i) Identify the type of reaction. (ii) Outline what must be true of a collision between reacting particles for a reaction to occur. (iii) Carbon-halogen bonds are polar, which…
Which graph represents the relationship between the pressure, P, and the volume, V, of a fixed amount of an ideal gas at constant temperature, according to PV = nRT? A. Graph A B. Graph B C. Graph C D. Graph D
Outline how the presence of the silver catalyst affects the rate of the reaction, and explain why.
(i) On the axes below, sketch Maxwell–Boltzmann energy distribution curves for the methanol molecules at two temperatures, T1 and T2, where T2 > T1. (ii) Explain the effect of increasing the temperature on the equilibrium yield of methanal.
(i) Methanal can be reduced. State the name of the organic product formed. (ii) Methanal can also be oxidized to methanoic acid, HCOOH, which is a weak Brønsted–Lowry acid. State the meaning of the term weak Brønsted–Lowry acid.
(i) Draw the Lewis formula of methanal. (ii) Explain the electron domain geometry around the carbon atom in methanal.
A 7.60 g sample of an oxide of nitrogen contains 4.80 g of oxygen. What is the empirical formula of the oxide? A. N2O B. NO2 C. N2O3 D. N2O5