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Earn 100

Two Bottles of A and B contains 1M and 1m aqueous solution d1g/mL has sulphuric acid respectively -

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Important Questions on Some Basic Concepts of Chemistry

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What volume of oxygen gas O2, measured at 0°C and 1 atm, is needed to burn 1L of propane gas completely C3H8, measured under the same conditions?
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Volume occupied by one molecule of water (density =1g cm-3 ) is:
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How many moles of lead (II) chloride will be formed from a reaction between 6.5 g of PbO and 3.2 g of HCl? (Atomic weight of Pb=207)
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An organic compound contains carbon, hydrogen and oxygen. Its elemental analysis gave C,38.71% and H,9.67%. The empirical formula of the compound would be:
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10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded. Amount of water produced in this reaction will be ? 
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The number of atoms in 0.1 mol of a triatomic gas is: 

NA=6.02×1023mol-1

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Which has the maximum number of molecules among the following?
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An excess of AgNO3 is added to 100 mL of a 0.01 M solution of dichlorotetraaqu-achromium (III) chloride. The number of moles of AgCI precipitated would be