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| 1. |
Chemical properties of acid and a base |
| Answer» Chemical Properties of Acids\tAcids change the colour of litmus from blue to red.\tThey convert the colour of Methyl Orange from Orange/Yellow to Pink.\tAcids turn the pink colour of Phenolphthalein to colourless.\tAcids can conduct electricity.\tSome Acids are highly corrosive in nature which means that they corrode or rust metals.\tAcids tend to evolve hydrogen gas whilst reacting with an active metal such as Zn, Mg, etc.Chemical Properties of Bases\tIn the chemical properties of acids and bases, we now focus on bases.\tBases change the colour of litmus from red to blue.\tThey are bitter in taste.\tBases lose their basicity when mixed with acids.\tBases react with acids to form salt and water. This process is called Neutralisation Reaction(Read).\tThey can conduct electricity.\tBases feel slippery or soapy. | |