Chemistry

DIRECTIONS : Chemistry Questions and Answers.
1. ____ is used for bleaching wood pulp in paper industry.
 
Answer
Ans: Bleaching powder
2. Sulphuric acid oxidises carbon to ____
 
Answer
Ans: carbon dioxide

3. ____ is used in the preservation of biological specimens.
 
Answer
Ans:Ethanol
4. Oxides of non metals are ___ in nature.
 
Answer
Ans:acidic
5. The pH of blood is ____
 
Answer
Ans:7.3 – 7.5
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