PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo
1. Write any four uses of bases.
  • In the production of soap,  is used.
  • Buildings are whitewashed with .
  •  is a medication that is used to treat stomach problems.
  • is used for removing grease stains from cloths.
2Write any five uses of salts.
 
Find the salt from the given options.
  •  is a popular food preservative and flavour enhancer in the food industry.
  • is used in fire extinguishers (foam extinguishers) along with aluminium sulphate.
  •  is used as a disinfectant in the drinking water supply.
3. Sulphuric acid is called King of Chemicals. Why is it called so?
 
Since sulphuric acid is used to prepare , it is called King of chemicals.  is used in car batteries.