The students of class X went to the Chemistry Laboratory of nearby school. They saw
different chemical used in the laboratory. They were very much interested to know the
uses of different chemicals. They have collected the following chemicals.
NaHCO,,Na, CO,, CaOCI,, CaSO, YH,0, HC1, NaOH
(i) Name the reaction when HCl and NaOH combined.
(ii) What is the use of Na,CO,?
(iii) Which one is strong acid and strong base?
What is the use of NaHCO,?
What is the use of Caso, 1H,O?
(vi) What is the use of CaOCI,?
Answers
Explanation:
1-when HCL hydrochloric acid and NaOH sodium hydroxide are mixed then the form common salt NACL and water H2O this reaction is called neutralization reaction and acid and base react together to form common salt NaCl and water H2O .
2-Sodium Na is used as a heat exchanger in a nuclear reactor and as a reagent in chemical industries but sodium salt is added to food and deice the road in winters
Co is used in industries and mixed in a fuel gases
3-NaHCO Sodium Bicarbonate is used in stomach problems food digestion and acidity it is a antacid it is used for temporary relief only .
calcium sulphate is an inorganic compound a formulas c a s o4 with related hydrides it is used as desicant.
4-calcium hypochlorite is generally used as bleaching order and for sterilization of water it is also used to manufacture chloroform