exam on Chemical Common Names, Formulas Welcome to your exam on Chemical Common Names, Formulas Name Email 1.Which of the following is the chemical symbol of Curium? 1. Cr 2. Cm 3. Ci 4. Cu None 2.What is the chemical name of the ionic compound NaCl? 1. Lithium chloride 2. Cesium fluoride 3. Calcium iodide 4. Sodium chloride None 3.Vinegar used in cooking contains which of the following compounds? 1. Methanol 2. Sodium sulphate 3. Ammonia 4. Acetic acid None 4.Which of the following compounds are also known as aliphatic compounds? 1. Aromatic compounds 2. Acyclic compounds 3. Cyclic compounds 4. Benzenoid compounds None 5.What is the chemical formula of baking soda? 1. NaHCO3 2. NH4Cl 3. Na2CO3 4. CaSO4 None 6.Which of the following is the correct chemical formula of sodium aluminate? 1. NaAlO2 2. Na3AlO 3. NaAlO3 4. Na2AlO3 None 7.What is the chemical name of battery acid? 1. Sulfuric acid 2. Barium sulphate 3. Hypochlorous acid 4. Boric acid None 8.Which of the following is a noble chemical element of the modern periodic table? 1. Fluorine 2. Silicon 3. Nitrogen 4. Neon None 9.Which chemical element does ‘Fe’ stand for in the science periodic table? 1. Fluorine 2. Oxygen 3. Fermium 4. Iron None 10.What chemical element does ‘N’ stand for in the periodic table? 1. Neptunium 2. Nitrogen 3. Neon 4. Neodymium None 11.Chemicals called ______ link to form proteins. 1. nitric acids 2. oxalic acids 3. amino acids 4. citric acids None 12.What is the molecular formula for hydrochloric acid? 1. HNO3 2. HCl 3. H2SO4 4. KOH None 13.Which compound has the chemical formula CHCl3 whose melting point is 209 K? 1. Carbon tetrachloride 2. Chlorophenol 3. Chloroform 4. Chloroethanol None 14.Identify the structural formula for ethene. 1. H2C = CH3 2. HC = CH3 3. H3C = CH3 4. H2C = CH2 None 15.Find the correct chemical formula of nitromethane. 1. CH3NO 2. CH3NO2 3. CH4NO2 4. CH3NO3 None 16.Identify the chemical structure for potassium hydroxide. 1. KOH 2. K2O 3. POH2 4. K2H2 None 17.The chemical symbol of arsenic is : 1. As 2. Ac 3. An 4. Ar None 18.What is the name of the compound having the formula CH3CH2OH? CH3CH2OH 1. Ethanol 2. Methane 3. Acetic Acid 4. Chloroform None Time's up
