Some Basic Concepts of Chemistry
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What is the molarity of SO4^2- ion in aqueous solution that contains 34.2 ppm of Al2(SO4)3...
By Deepak Rock, 4 years ago
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When burnt in air, 14.0 g mixture of carbon and sulphur gives a mixture of CO2 and SO2 in ...
By Deepak Rock, 4 years ago
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168
On subjecting 10 mL mixture of N2 and CO to repeated electro spark, 7 mL of O2 was require...
By Deepak Rock, 4 years ago
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370
100 cm^3 of 0.1 N HCl is mixed with 100 cm^3 of 0.2 N NaOH solution. The resulting solutio...
By Deepak Rock, 4 years ago
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270
What is the empirical formula of vanadium oxide, if 2.74 g of the metal oxide contains 1.5...
By Deepak Rock, 4 years ago
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293
In an organic compound of molar mass 108 g mol^-1 C, H and N atoms are present in 9 : 1 : ...
By Deepak Rock, 4 years ago
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199
A gaseous compound of nitrogen and hydrogen contains 12.5% (by mass) of hydrogen. The dens...
By Deepak Rock, 4 years ago
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463
Choose the incorrect formula out of the four compounds for an element X below:
By Deepak Rock, 4 years ago
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345
An aqueous solution of oxalic acid dihydrate contains its 6.3 g in 250 mL. The volume of 0...
By Deepak Rock, 4 years ago
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358
5 g of benzene on nitration gave 6.6 g of nitrobenzene. The theoretical yield of the nitro...
By Deepak Rock, 4 years ago
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