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What is the formula of Sodium oxides if 0.69 g of sodium combines with 0.24 g of oxygen ? Nao, Na2O, NaO2, Na2O2
Which of the following pair of mixture can be separted by sublimation ? Na2So4 And Nacl, Benzonic acid and h2O, Sand and Naphthlene, Pb ++ and Cd ++
The Critical temperature of a gas ----------- : Depends on the critical pressure, Does not depend on the nature of gas, Is a lower then inversion t
HF is among the weakest halogen acid due to : Strong polar bond between H2 and F2, Electronegativity of Fluorine, Smaller size of Fluorine, Hydro
Which of the following are Isomorphs ? NaNo3and Caco3, ZnSo4andMSOA, NaFand MgO, All of these
The blue colour of water in sea is due to ------ : Reflection of blue sky by sea water , Reflection of blue light by impurities in sea water, Scatteri
An ionic compound will dissolve in water only if -------- : Hydration energy low and lattice energy high, Hydration energy high and lattice energy low, Hydratio
For any system the difference between enthalpy and internal energy can be express as ---- : CP, CV, RT, PV
The specific rate constsnt for the forward and reserse reaction are 25 X 10 ^ -2 and 5 X 10 ^3 respectively the equillibium constant for the reaction A + B ? C + D ------ : 2.5 X 10 -6, 5 X 10 -5, 2 X 10 -4, 4 X 10 2
Which of the following statement about the order of reaction is ture ? The order of reaction can only be determined by experiment, A second order reaction is always biomol
One mg of solute per kilogram of solution is ------ : 1 M, 1 PPm, 1 M, 1 % w/w
If 5.85 g of Nacl are dissolved in 90 g of H2O the mole fraction of Nacl is ----- : 0.1, 0.2, 0.0196, 0.01
A compound decomposes with half life is independent of concentration how much time is consumed to convert the concentration of 1 /16 th of its initial concentration ? 32 S, 24 S, 40 S, 14 S
Standard reduction electrode potential of the three metals A,B and C are 0.5 V, and -3.0 V respectively the order of reducing power is : B > C > A, A > B > C, C > B > A, A > C > B
Shapes of ClO 3 is -------- : Triangular Pyramidal, Tetrahedual, Triangular bipyramidal, Triangular Planer
The properties which depend mainly on the arrangement of atoms in the moleculae and to a lesser extent on their number are called ----- properties : Colligative, Constitutive, Additive, Chemical
The temperature at which the solid and liquid phase of a substance coexists is called ------ : Consulate Temperature, Triple Point, Boiling Point, Freezing Point