6. Exercise VI

1. Is it safe for the electrician to carry out electrical repairs outdoors during heavy downpour? Explain.  

2. Paheli had heard that rainwater is as good as distilled water. So she collected some rainwater in a clean glass tumbler and tested it using a tester. To her surprise, she found that the compass needle showed deflection. What could be the reasons?

  

Rainwater is pure water which is an good conductoran insulatorbad conductor, but when it comes into contact with pollutants in the air, such as sulphur dioxide sulphur trioxide sulphur oxide and nitrogen oxides, it forms an\a basic solutionbuffer solutionacidic solution, which is a good conductor of electricity.