OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A(n) ____ is a substance with a pH less than 7
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Acid
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Alkaline
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Base
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Buffer
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Explanation:
Detailed explanation-1: -pHs less than 7 are acidic while pHs greater than 7 are alkaline (basic).
Detailed explanation-2: -The salt solution which has strong acid and weak bases is acidic in nature. They have a pH of less than 7. They have weak bases such as Ammonium hydroxide ( NH 4 OH ) and strong acids such as Sulphuric acid ( H 2 SO 4 ) and Hydrochloric acid.
Detailed explanation-3: -Substances that have a pH level of less than 7 are acidic in nature. For e.g Acidic substances such as vinegar, tamarind, lemon, etc. Substances that have a level of more than 7 are basic in nature. For e.g. Basic substances such as baking soda, limewater, ammonia, etc.
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