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which has maximum kinetic energy? ...
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β-rays are same as ...
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α particles are identical with ...
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Evaporation of a liquid depends upon ...
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An aqueous solution of methanol has vapour pressure ...
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A liquid can exist only ...
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Pressure cooker reduces cooking time because ...
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Boiling point of a liquid is ...
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During evaporation of liquid ...
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vapour pressure of a liquid depends upon ...
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the melting point of water is ...
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Heat energy is zero in a substance at temperature of ...
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The boiling point of water in absolute scale of temperature is ...
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the particle constituents of matter have minimal kinetic energy at temp. of ...
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Hydrogen combines with fluorine in a 1:19 weight ratio to form hydrogen fluoride. If every molecule of hydrogen fluoride contains one atom of hydrogen and one atom of fluorine, an atom of fluorine must weigh: ...
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Dalton suggested that atoms were indestructible and unchangeble to explain that ...
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Dalton based his relative atomic weight scale on: ...
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The chemical combination of two or more atoms in fixed amounts is called a ...
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Which of the following particle is capable of free existence? ...
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Atomic mass of an element is ...
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50 ml 10 N H2SO4, 25 ml 12 N HCl & 40 ml 5 N HNO3 were mixed together and the volume of the mixture is made 1000 ml by adding water. The normality of the resultant solution will be ...
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If the equivalent wt of a trivalent metal is 32.7, the molecular weight of its chloride is ...
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mole fraction of the solute is 0.3 and the weight of solvent is 700 g. (atomic mass of solvent is 100 g). find the molality of solution ...
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find the molality of solution in which 7.3 g of HCl is present in 257.3 g of solution ...
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5 molar solution of H2SO4 is diluted from 1 litre to 10 litres, the normality of the solution will be ...
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find the molarity of solution of 500 ml containing 29.2 g of HCl ...
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Minimum Volume of SO2 gas at STP which reduces 100 ml of 0.1 N K2Cr2O7 The reaction is K2Cr2O7+H2SO4+3SO2 → K2SO4+Cr2(SO4)3+4H2O ...
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How much of NaOH is reqd. to neutralize 1500 cm3 of 0.1 N HCl? ...
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Zn strip of mass 26 g is thrown in CuSO4 solution, find the mass of Cu formed ...
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how much g of HCl is reqd. to completely react with 13 g of Zn? ...
asked2009-04-15 21:12:45