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Calcium oxide is a drying agent which removes water vapour. A student wanted to collect a dry sample of the hydrogen chloride gas produced. The student set up the apparatus as shown below but was unsuccessful in collecting any gas. (a) What mistake did the student make? (b) What change should be made by the student in order to collect the dry HCl gas?
Select the correct answer from the options given in the brackets: (a) The ion which is discharged at the cathode during the electrolysis of CuSO4 solution using copper electrodes. [Cu+2, OH-, SO4 2-, H+] (b) During electroplating of an article with Ag using sodium argentocyanide as an electrolyte, the anode is made of. [Cu, Ag, Pt, Na]
Ethane C2H6 burns in oxygen to produce carbon dioxide and water as shown in the equation given below: 2C2H6 + 7O2 → 4CO2 + 6H2O Calculate the composition of the resulting gaseous mixture at room temperature when 60 c.c. of ethane burns in 250 c.c. of oxygen.
Match the uses of alloys in List 1 with the appropriate answer from List 2.
The flow chart below represents the Contact Process for manufacture of sulphuric acid.
Give IUPAC name for the following organic compounds: 1. CH₃ | H₃C–C–CH₃ | CH₃ 2. Cl | Cl–C–Cl | Cl
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