9 What does a molecular formula show? A Arrangement of atoms B Number of each type of atom C Shape of molecule D Type of bonds only
10 The Contact process is used for the manufacture of: A Nitric acid B Sulphuric acid C Hydrochloric acid D Ammonia
11 The reactivity series helps in predicting: A Atomic mass B Metal displacement reactions C Color of metals D Density of metals
15 Which oxide is formed when magnesium burns in oxygen? A Magnesium carbonate B Magnesium hydroxide C Magnesium oxide D Magnesium sulphate
16 Which oxide is acidic in nature? A Calcium oxide B Magnesium oxide C Sulphur dioxide D Sodium oxide
18 Which formula shows the arrangement of atoms in a molecule? A Molecular formula B Empirical formula C Structural formula D General formula
20 What is the IUPAC name of CH3COOH? A Ethanoic acid B Methanoic acid C Propanoic acid D Butanoic acid
23 Which organic compound contains both carbon and hydrogen only? A Alcohol B Ester C Hydrocarbon D Carboxylic acid