Chemistry Past Questions and Answers

The major component of the slag from the production of iron is?

Sodium hydrogen should be stored in properly closed containers because it?

To make coloured glasses, small quantities of oxides of metals which form coloured silicates are often added to the reaction mixture consisting of Na<sub style='font-size: smaller;'>2</sub>CO<sub style='font-size: smaller;'>3</sub> and SiO<sub style='font-size: smaller;'>2</sub>. Such a metals is a?.

Which of the following compounds gives a yellow residue when heated and also reacts with aqueous sodium hydroxide to give a white gelatinous precipitate soluble in excess sodium hydroxide solution?

A cycloalkane with the molecular formula C<sub style='font-size: smaller;'>5</sub>H<sub style='font-size: smaller;'>10</sub> has ?