81. Which of these acids is not organic in origin?
82. Match the sourc in Column B with the product of
Column A. (Product) Column B (Source) A. Formic acid 1. Lemon B. Citric acid 2. Tamarind C. Tartaric acid 3. Ants
| Column A. (Product) | Column B (Source) |
|---|---|
| A. Formic acid | 1. Lemon |
| B. Citric acid | 2. Tamarind |
| C. Tartaric acid | 3. Ants |
83. Saline soil contains
84. Sour milk contains
85. Basicity of boric acid, H3BO3 is
86. Which one is a soluble salt in H2O?
87. Vinegar is ________ .
88. pH value between 6.5-7.5 makes the soil
89. A pungent smell often present near the urinals is due to
90. Ammonial is a mixture of
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