Short Answer TypeEthane burns in oxygen to form CO2 and H2O according to the equation:
2C2H6 + 7O2 → 4CO2 + 6H2O
If 1250 cc of oxygen is burnt with 300 cc of ethane.
Calculate:
(i) the volume of CO2 formed
(ii) the volume of unused O2
According to the reaction,
so, ethane is limiting reagent.
(i) 2 x 22400 cc ethane gives, 4 x 22400 cc CO2
therefore, 300 cc ethane gives,
= 600 cc CO2
(ii) For 300 cc Ethane 1050 cc of O2 will be required.
So, unused O2 is (1250 - 1050 ) = 200 cc
Three solutions P, Q and R have pH value of 3.5, 5.2 and 12.2 respectively. Which one of these is a:
(i) Weak acid?
(ii) Strong alkali?
Give a chemical test to distinguish between the following pairs of chemicals:
Lead nitrate solution and zinc nitrate solution
Give a chemical test to distinguish between the following pairs of chemicals:
Sodium chloride solution and sodium nitrate solution
write a balanced equation for the preparation of the following salts:
Copper sulphate from copper carbonate.
Write a balanced equation for the preparation of the following salts:
Zinc carbonate from zinc sulphate
What is the type of salt formed when the reactants are heated at a suitable temperature for the preparation of Nitric acid?
Which property of sulphuric acid is shown by the reaction of the concentrated sulphuric acid with:
(i) Ethanol?
(ii) Carbon?
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