Chemistry Past Questions and Answers

\(5.00 g\) of hydrated salt of barium when heated to a constant weight gave \(4.26 g\) of anhydrous salt with a molecular weight of 208. The number of molecules of water of crystallization in the hydrated salt is ____________

Oxidation is the process of ____________

Which of the following statement is NOT true of the electrovalent compounds?

If concentrated sulphuric acid is added to sugar and warmed gently, the sugar changes from white to brown and "finally to a black mass of carbon. In this reaction, concentrated sulphuric acid is acting as ____________

When heat is absorbed during a chemical reaction, the reaction is said to be ____________