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Water was first prepared by ______.
Concept: undefined >> undefined
When did Henry Cavendish discover Water?
Concept: undefined >> undefined
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Bases are chemical substances that are corrosive and ______ in taste.
Concept: undefined >> undefined
Water-soluble bases are called ______.
Concept: undefined >> undefined
Sodium carbonate is commercially called ______.
Concept: undefined >> undefined
Match the following:
| 1. | Wasp sting | a. | Milk of magnesia |
| 2. | Common salt | b. | Acetic acid |
| 3. | Organic acid | c. | Sodium chloride |
| 4. | Antacid | d. | Vinegar |
Concept: undefined >> undefined
Match the following:
| 1. | Sulphuric acid | a. | Weak base |
| 2. | Sodium hydroxide | b. | Strong acid |
| 3. | Acetic acid | c. | Strong base |
| 4. | Ammonium hydroxide | d. | Weak acid |
Concept: undefined >> undefined
All bases are alkalis but all alkalis are not bases.
Concept: undefined >> undefined
Name the base which is present in a window cleaner.
Concept: undefined >> undefined
What is the role of toothpaste in the prevention of tooth decay?
Concept: undefined >> undefined
Which of the following is referred to as wood gas?
Concept: undefined >> undefined
______ is a mixture of methane and carbon dioxide.
Concept: undefined >> undefined
The breaking down of organic matter in an anaerobic condition leads to the formation of ______.
Concept: undefined >> undefined
______ is absent in bacteria.
Concept: undefined >> undefined
______ is not a shape seen in bacteria.
Concept: undefined >> undefined
E.coli is an example of ______ bacteria.
Concept: undefined >> undefined
______ are considered to be the first living organisms on earth.
Concept: undefined >> undefined
The nuclear material of bacteria is called ______.
Concept: undefined >> undefined
The extrachromosomal DNA in bacteria is called ______.
Concept: undefined >> undefined
