(a)(i) State two physical properties of hydrogen sulphide (ii) Name the laboratory equipment used for intermittent production of hydrogen sulphide (b) What ...

(a) Give the name of the: (i) process for obtaining ethanol from sugars; (ii) compound produced when ethanol undergoes bacterial oxidation. (iii) enzyme in y...

(a) What is the anhydride of each of the following acids?: (i) H\(_2\)SO\(_4\) (ii) HNO\(_3\) (b) Classify each of the: following as normal salt/acid salt/ba...

(a) State the monomer units of (i) polyethene; (ii) cellulose (b) Name the two fuels obtained when steam and air are passed over red-hot coke.

(a) State three postulates of the kinetic theory (b) Name the process involved in the; (i) spread of the smell of a perfume across a room (ii) decrease in th...

Use the following energy profile diagram to answer Questions (a) to (c) below. (a) From the diagram, determine the value of the; (i) enthalpy of the reaction...

(a) (i)Name the class of oxides to which copper (II) oxide belongs. (ii) Give the reason why copper (II) oxide increases in mass on exposure to the atmospher...

(a) List two gases which are monatomic (b) Mention one gas which forms: (i) dense white fumes with ammonia vapour (ii) yellow precipitate with ammoniacal sil...

(a) The elements listed below to the same group in the Periodic Table \(_9F\) \(_{17}CI\) \(_{35}Br\) \(_{53}I\). (i) Write the electronic structure of the f...