KERALA PSC FREEQUENTLY ASKED QUESTIONS
SUBSTANCE AND Ph VALUE
Hydrochloric Acid --- 0
Car Battery Acid --- 1.0
Lemon Juice --- 2.4
Apple --- 3.0
Vinegar --- 4.0
Rain Water --- 5.6
Milk --- 6.6
Pure Water (neutral)-- 7.0
Human Blood --- 7.4
Sea Water --- 7.8
Baking Soda --- 8.5
Ammonia --- 12.0
Caustic Soda(alkali)--- 14.0
