Advertisements
Advertisements
Question
Why is potassium chlorate is not used for laboratory preparation of oxygen ?
Advertisements
Solution
Potassium chlorate is a white solid. When it is heated strongly, first it melts and then it begins to boil, giving of oxygen. Potassium chlorate needs strong heating. That is why it is not used for laboratory preparation of oxygen.
APPEARS IN
RELATED QUESTIONS
Taking hydrogen peroxide, how would you prepare oxygen in the laboratory ?
Give four uses of oxygen.
What happens when Sulphur burns in oxygen ? Also give the balanced chemical equation for the reaction.
How will you identify oxygen in the laboratory ?
Statement given below is incorrect. Write the correct statement :
Moist oxygen causes rusting in carbon.
Write fully balanced equation for the following :
Na2O + H2O →
State three uses of oxygen, other than artificial respiration.
Give tests for oxygen gas.
Give reasons for the following:
oxygens finds utility in welding & cutting of metals.
Give reason for the following:
Oxygen gas does not affect moist blue litmus paper, but carbon dioxide turns it slightly pink.
