Formative Assessment - 1 by TechUp https://padlet.com/ahmedshayan09/r9s2wys4jvvzukz6 en-us 2022-02-17 14:23:20 UTC 2022-02-17 14:59:42 UTC hello@padlet.com https://padlet.net/icons/png/1f9ea.png c. How does neutralisation reaction play an important role in our daily life. Explain by giving any three examples. ahmedshayan09 https://padlet.com/ahmedshayan09/r9s2wys4jvvzukz6/wish/2053380447 1. Neutralisation is an important chemical reaction which helps in preventing tooth decay. Toothpaste that we use is alkaline. Bacteria present in our mouth produces acid. When we brush our teeth with toothpaste, the alkali in toothpaste neutralises the acids produced by bacteria in our mouth.
2. During indigestion, too much of acid is produced inside the stomach resulting in stomach disorder or acidity. In order to retrieve the pain, we take bases such as milk of magnesia which contains magnesium hydroxide. Taking a base neutralizes the effect of excess acid.
3. Second is the effect of ant sting which is caused by formic acid which is neutralized by rubbing moist baking soda (basic in nature) which contains zinc carbonate.]]> 2022-02-17 14:59:06 UTC https://padlet.com/ahmedshayan09/r9s2wys4jvvzukz6/wish/2053380447 b. Why do you think it is important to treat the factory wastes before they are dumped into the rivers? ahmedshayan09 https://padlet.com/ahmedshayan09/r9s2wys4jvvzukz6/wish/2053380879 It is important to disinfect and treat the factory wastes as it will decrease the acidity level of the river. If the factory wastes are not treated properly before being dumped into the river. The chemicals and germs inside the waste will be spread in the river which can cause many problems for the people who bath and animals who drink water from the river.]]> 2022-02-17 14:59:17 UTC https://padlet.com/ahmedshayan09/r9s2wys4jvvzukz6/wish/2053380879 a. If you are one of them, suggest two ways to reduce the acidity of river Yamuna. ahmedshayan09 https://padlet.com/ahmedshayan09/r9s2wys4jvvzukz6/wish/2053381394 If I was one of them I would suggest making new laws which would make it a crime to dump waste in rivers. I would also suggest that there would be a heavy fine for dumping waste in the river.]]> 2022-02-17 14:59:30 UTC https://padlet.com/ahmedshayan09/r9s2wys4jvvzukz6/wish/2053381394 Students of grade VII while doing a project on river Yamuna, found that the water of Yamuna is acidic beyond limits as the factory wastes are dumped into the river. They wrote to the Municipal Corporation of the state suggesting ways to reduce this kind of pollution. ahmedshayan09 https://padlet.com/ahmedshayan09/r9s2wys4jvvzukz6/wish/2053381679 2022-02-17 14:59:38 UTC https://padlet.com/ahmedshayan09/r9s2wys4jvvzukz6/wish/2053381679