Question

a)mention the pH range with in which our Body Works explain how antacid give relief from acidity write the name of one such antacid b) fresh milk has a pH of 6 how does the pH with change as it turn to curd? explain your answer c) a milkman adds a very small amount of baking soda to fresh milk. why does this milk take a longer time to set as curd d) mention the nature of toothpastes . how do they prevent tooth decay ​

Answer 1

HEYA FRIEND HERE IS YOUR ANSWER

(A) 7.0–7.8.  

During indigestion, stomach produces too much acid which causes pain. Antacids are alkaline and so neutralize the excess acid.  Milk of Magnesia is an antacid.

(B) The pH will decrease. The milk when changes to curd becomes more acidic. Lesser the pH value, more is the acidic nature.

(C) He shifts the pH of the fresh milk from 6 to alkaline so that in basic form it will not spoil easily. This milk takes a long time to set as curd because the lactic acid produced reacts with the baking soda.

(D) Tooth pastes are alkaline in nature. They neutralize the excess acid produced by bacteria in mouth .Our mouth contains bacteria these bacteria degrades sugar particles which were eaten by us i.e remaining food and releases acids this may produce tooth decay, so in order to prevent tooth decay toothpaste is made in basic in nature basic will neutralize the acid and gives salt and water.

                HOPE THIS HELPS YOU!!