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In a litre vessel, initially each has present, then for the equilibrium of , following is true :
(a) more then
(b) less then
(c) both more than
(d)All of these

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Important Questions on Some Basic Concepts of Chemistry
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The sodium salt of methyl orange has sodium. What is the minimum molecular weight of the compound?

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of at was liquefied, the density of the liquid being . Calculate the volume and the number of molecules in the liquid .

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Common salt obtained from seawater contains by mass. The approximate number of molecules of present in of the common salt is: (Atomic weight, )

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and are two elements which form and . If mol of weighs g and mol of weighs g, the atomic weights of and , respectively, are:

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A sample of a mixture of calcium chloride and sodium chloride is treated with solution. The resulting calcium carbonate is heated to convert all the calcium to calcium oxide and the final mass of calcium oxide is . The percentage by mass of calcium chloride in the original mixture is:

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If moles of & moles are reacted with an excess of , the volume of gas evolved at is:

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The minimum amount of required to produce sufficient oxygen for the complete combustion of which produces of at after combustion is:

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Consider the following statements:
1. If all the reactants are not taken in their stoichiometric ratio, then at least one of the reactant will be left behind.
2. moles of and moles of produce moles of water.
3. Equal wt. of carbon and oxygen are taken to produce , then is the limiting reagent.
The above statements respectively are:
