Chemistry Past Questions and Answers

In which of the following crystals are the particles held by van der Waal's forces only?

A current of 4.0 amperes was passed through copper (ll) tetraoxosulphate (IV) solution for one hour using copper electrodes. What was the mass of copper deposited? (Cu = 64, 1F = 96500 C)

When a crystal was added to its solution, it did not dissolve and the solution remained unchanged, showing that the solution was

An organic compound which reacts readily with bromine to form a compound with the formula CH₃CHBrCH₂Br is

river contaminated by alkali waste will have a pH of about.