-
Radioactive decay follows the kinetics of ...
-
gamma rays are ...
-
The ionizing power is in the order ...
-
penetrating power of γ-rays is ...
-
the correct order of the effect of α,β,γ rays on photographic film is ...
-
Which has maximum deflection in magnetic field? ...
-
which has maximum kinetic energy? ...
-
β-rays are same as ...
-
α particles are identical with ...
-
Evaporation of a liquid depends upon ...
-
An aqueous solution of methanol has vapour pressure ...
-
A liquid can exist only ...
-
Pressure cooker reduces cooking time because ...
-
Boiling point of a liquid is ...
-
During evaporation of liquid ...
-
vapour pressure of a liquid depends upon ...
-
the melting point of water is ...
-
Heat energy is zero in a substance at temperature of ...
-
The boiling point of water in absolute scale of temperature is ...
-
the particle constituents of matter have minimal kinetic energy at temp. of ...
-
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: ...
-
Dalton suggested that atoms were indestructible and unchangeble to explain that ...
-
Dalton based his relative atomic weight scale on: ...
-
The chemical combination of two or more atoms in fixed amounts is called a ...
-
Which of the following particle is capable of free existence? ...
-
Atomic mass of an element is ...
-
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 ...
-
If the equivalent wt of a trivalent metal is 32.7, the molecular weight of its chloride is ...
-
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 ...
-
find the molality of solution in which 7.3 g of HCl is present in 257.3 g of solution ...
asked2009-04-15 21:12:45