(a) Milk is made slightly alkaline so that it may not get sour easily, due to the formation of lactic acid in it.
(b) The alkaline milk takes a longer time to set into curd because the lactic acid formed has to first neutralise the alkali present in it.
(a) By adding a very small amount of baking soda to fresh milk, the milkman keeps the milk unspoiled for little more time than usual time.
As the pH value increases the milk turns to slightly alkaline.
(b) On boiling, milk will become slightly bitter in taste due to the presence of baking soda.
Number of boxes of soda can Abhis's mother bought = 8
Number of cans each box contain = 24
Total number of cans Abhi's mother bought for party = 24×8=192
So, she bought...
This a chemical change as new products are formed.
Baking soda + Lemon juice ------------> Salt + Carbon dioxide + Water
When acid react with carbonates, salt is formed releasing carbon dioxide...
(i) In order to maintain the desired temperature of the mixture, the container can be wrapped either by woollen material or any other poor conductor of heat. Alternately, the mixture...
Wasp sting inject a liquid in the skin which is acidic in nature. Hence, baking soda is the appropriate remedy, as it is basic in nature and neutralises the acid.