Theory

CH18 - CARBONYL COMPOUNDS

Compound $W$ has molecular formula $C_4H_{10}O$. It contains only one functional group.(a) Table 5.1 shows the two peaks with the greatest $m/e$ value...

2024 Summer

2

Theory

CH18 - CARBONYL COMPOUNDS

Propanope, CH₃COCH₃, is an important organic reagent. Fig. 4.1 shows some reactions of propanone and its derivatives.[Image_1: Fig. 4.1 with react...

2024 Winter

4

Theory

CH18 - CARBONYL COMPOUNDS

Propanone, $\text{CH}_3\text{COCH}_3$, is an important organic reagent. Fig. 4.1 shows some reactions of propanone and its derivatives.(a) Reaction 1 ...

2024 Winter

3

Theory

CH18 - CARBONYL COMPOUNDS

(a) (i) Define addition reaction.........................................................................................................................

2023 Spring

2

Theory

CH18 - CARBONYL COMPOUNDS

Y is formed from X in a single-step reaction, as shown in Fig. 5.1.(a) Deduce the empirical formula of Y.................................................

2023 Summer

2

Theory

CH18 - CARBONYL COMPOUNDS

G belongs to a group of compounds called ethers.(a) When G, C₄H₁₀O, is heated, thermal decomposition occurs.C₄H₁₀O(g) → C₂H₆(g) + CO...

2022 Summer

2

Theory

CH18 - CARBONYL COMPOUNDS

Compounds J and K are found in plant oils.[Image_1: Illustration of compounds J and K]Fig. 4.1(a) (i) Complete Table 4.1 to state what you would obser...

2022 Spring

2

Theory

CH18 - CARBONYL COMPOUNDS

Hydroxyethanal, HOCH$_2$CHO, has been observed in dust clouds near the centre of our galaxy.hydroxyethanal(a) Predict the bond angles labelled x and y...

2021 Spring

2

Theory

CH18 - CARBONYL COMPOUNDS

(a) (i) Reaction 1 is an oxidation reaction.Give the reagent(s) and conditions required for reaction 1.reagent(s) .......................................

2021 Winter

2

Theory

CH18 - CARBONYL COMPOUNDS

(a) (i) Reaction 1 is an oxidation reaction.Give the reagent(s) and conditions required for reaction 1.reagent(s) .......................................

2021 Winter

2

MCQ

CH2 - ATOMIC STRUCTURE

In which species does the underlined atom have an incomplete outer shell?

2012 Summer

1

MCQ

CH7 - EQUILIBRIA

Ammonia is manufactured by the Haber Process, in an exothermic reaction. Assuming that the amount of catalyst remains constant, which change will not ...

2012 Summer

2

MCQ

CH5 - CHEMICAL ENERGETICS

The equation for a reaction is shown.$\text{H}_2(g) + \frac{1}{2}\text{O}_2(g) \rightarrow \text{H}_2\text{O}(l) ; \Delta H = x \text{ kJ mol}^{-1}$Wh...

2012 Summer

1

MCQ

CH2 - ATOMIC STRUCTURE

The value of the second ionisation energy of calcium is 1150 kJ mol^{-1}. Which equation correctly represents this statement?

2012 Summer

MCQ

CH3 - CHEMICAL BONDING

Two conversions are outlined below.$$\text{NH}_4^+ \rightarrow \text{NH}_3$$$$\text{C}_2\text{H}_4 \rightarrow \text{C}_2\text{H}_6$$What similar feat...

2012 Summer

MCQ

CH4 - STATES OF MATTER

Use of the Data Booklet is relevant to this question.The gas laws can be summarised in the ideal gas equation.$pV = nRT$0.56 g of ethene gas is contai...

2012 Summer

MCQ

CH5 - CHEMICAL ENERGETICS

Propanone has the molecular formula $C_3H_6O$.The enthalpy change of combustion of hydrogen is $-286\text{ kJ mol}^{-1}$.The enthalpy change of combus...

2012 Summer

1

MCQ

CH4 - STATES OF MATTER

Under which set of conditions is a gas most likely to behave ideally? [Table_1]

2012 Summer

1

MCQ

CH7 - EQUILIBRIA

Two moles of compound P were placed in a vessel. The compound P was partly decomposed by heating. A dynamic equilibrium between chemicals P, Q and R w...

2012 Summer

1

MCQ

CH1 - ATOMS, MOLECULES & STOICHIOMETRY

The oxide of titanium, TiO₂, is used as a ‘whitener’ in toothpaste. It is obtained from the ore iron(II) titanate, FeTiO₃.What is the change, ...

2012 Summer