1. Disinfectants are substances which are applied on inanimate objects to kill microbes (like floor cleaners). You can easily prepare a disinfectant on your own. Take a litre plastic bottle. To it add 3 tbsp borax powder & then add 700 ml warm water & shake it well. Then add 4 tbsp of white vinegar & shake to combine. You can add some more things to make it more effective like neem oil, 1 tbsp of liquid dish washer or tea-tree oil Do not use any chemical which may be corrosive. Choose a small corner of your house where you can apply it &observe it’s effectiveness. Compare it with the disinfectant you normally use like domex and lizol. Is it more effective? Justify your answer without arguments.
[2. Perform the experiment of Secret writing using kitchen items like baking soda and blueberry juice or some chemically similar things
[3. Detect presence of urea in milk using arhar dal
[4. Compare the boiling point of water and sugar solution. Which one is higher and why?
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Answers
Answer:
Disinfectants are designed and registered to kill specific germs (as listed on the label). Even if a disinfectant says it kills 99.999% of microorganisms, be sure to check the label for the exact bacteria and viruses you need to eradicate in your facility. Disinfectants and sanitizers are indeed different. Disinfectants usually have a greater efficacy against pathogens than sanitizers. Most sanitizers are designed to kill the types of bacteria that cause foodborne illness and are therefore often used in foodservice environments. Disinfectants generally have broader kill claims and are most often used in healthcare and education settings.Use microfiber. Mops and cleaning cloths made of synthetic microfiber are considered to be more effective than those made from natural based fibers, due to their resistance to “quat binding” which occurs with natural fibers like cotton.
Explanation:
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