Chemistry
Grade-10
Easy
Question
Read the given following paragraph and fill in the blanks by choosing an appropriate option.
Calcium hypochlorite is a ___A___ powder. When it is exposed to air, it slowly decomposes to give ___B___and calcium chloride. It is ___C___ in cold water and the milkiness of the solution is due to presence of unreacted ___D___. It reacts with HCI and H2SO4 liberating ___E___ gas.
Identify the solution present in test tube A, B and C respectively?
Hint:
Ca(ClO3)2 
CaCl2 + 3O2
The correct answer is:
Calcium hypochlorite is a pale yellow powder. When it is exposed to air, it slowly decomposes to give calcium chlorate and calcium chloride. It is soluble in cold water and the milkiness of the solution is due to presence of unreacted lime. It reacts with HCI and H2SO4 liberating chlorine gas.
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