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Which one of the following substance is not obtained by sublimation ? Napthlene, NH4Cl, Potash Alum, Camphor
Equal mass of CH4 and O 2 are mixed in empty Vessel at 25 °C.the Fraction of total pressure exerted by o2 is : 1 over 3, 8 over 9, 1 over 9, 16 over 17
The rate of change of Vapour pressure with temperature is given by : Kinetic Equation, Vander walls equation, Arhenius equation, Clausis Clapeyran equation
Half life of 92 U 235 is : 7.0 X 10 ^ 8 Years, 6.1 X 10 ^ 8 Years, 8.1 X 10 ^ 7 Years, 7.1 X 10 ^ 10 Years
Which of the following reaction involve oxidation and reduction ? NaBr + Hcl ? NaCl + HBr, HBr + AgNo ? AgBr + HNO3, H2 + Br 2 ? 2 HBr, 2NaO + H2SO4 ? Na2So4 +H2O
Which of the following Does not has dipole-moment ? ClO, CO2, No2, SO2
Atomic weight of C,N and O is 12 ,14 ,16 amu respectively among the following pair of gases the pair wich can diffuse at same rate is : Carbon dioxide and Nitrous oxide, Carbon dioxide and Nitrogen Peroxide, Carbon dioxide and Carbon
Which of the following has highest solubility in water ? Ca (OH)2, Fe(OH), Cr(oH), Zn(OH)
20 g of Naoh has been dissolved in 2 dm3 of solution the molarity of the solution is : 0.05 m, 0.25 m, 0.5 m, 1.0 m
An electron is moving with a velocity of 10 ^8 cm/s what will be the Wavelength association with electron 72.7 A °, 7.27 A °, 727 A °, 0.727 A °
He4Over 2 + Be 9 over 4 ? X + n 1/0 what is X ? N 14 /7, C 12/6, F 18 /9, Li 7/3
A smuggler could not carry gold by chemically depositing iron on gold surface : Gold Is denser, Gold has highest reduction Potential then iron, Iron rust, Gold has lower reduction
The rate of reaction can be increased by all factors except : Increaseing Concentration of reactants, Increase the activation energy, Using a catalyst, Increasing
Which relation is in correct ? V = c/ ?, V = h/E, E = HcV, V = 1/ ?
Which statement is true for the reaction given ? CuO + H2 ? Cu + H2O CUO act as oxidizing agent, CUO act as an acid, CUO act as reducing agent, CUO act as dehydrating ag
Platinum ,Palladium Iridium etc. are called noble metals because : Alfred Noble discoved them, They are inert toward many reagents, They are Shining lustrous and Plea
The number of atom of phosphorous in one mole of aluminium phosphate AlPO 4 is : 3 X 10 ^ 23, 12 X 10 ^23, 6 X 10 ^ 23, 18 X 10 ^ 23