Page 20 - E-Science Prep1 2024-2025 t2 Unit1_Neat - Copy
P. 20
? The strength of acidic solution increases as its PH approaches 0.
? The strength of alkaline solution increases as PH approaches 14.
? The most alkaline substance is the oven cleaner as PH approaches 14
? The most acidic substance is the gastric acid as PH approaches 0
? The least alkaline substance is the egg as PH is slightly higher than 7
? The least acidic substance is milk as PH is slightly lower than 7
? PH of skin & hair care varies e.g. PH of shampoo for dry hair differ than that for
oily hair
G.R:
1- The alkalinity of ammonia is higher than that of baking soda
as PH of ammonia is higher than that of baking soda.
2- The acidity of grapes is higher than that of tomato
as PH of grapes is lower than that of tomato.
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Second Term
