Which of the following tests is used for the detection of glucose?

Which gas is a mixture of carbon monoxide $(CO)$ and dihydrogen $(H_2)$?

Draw the electron-dot structure for ethyne. $A$ mixture of ethyne and oxygen is burnt for welding. In your opinion,why cannot we use a mixture of ethyne and air for this purpose?

An element is a main constituent of paper,diamond and clothes etc. It forms covalent bonds with itself and other elements.
$(a)$ Identify the element.
$(b)$ Write the electron dot structure of its oxide.
$(c)$ Draw the electron dot structure of methane and ethane.

Write the balanced chemical equations for the following reactions and identify the type of reaction in each case.
$(a)$ Ethanol is warmed with ethanoic acid to form ethyl acetate in the presence of concentrated $H_2SO_4$.
$(b)$ Ethene is burnt in the presence of oxygen to form carbon dioxide, water and releases heat and light.

Which condensation polymer is formed from hexamethylenediamine and adipic acid?