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Height of peak in mass spectrum show : Number of iostopes, Mass number, relative abundance of isotopes, Number of protons
Rate of filtration can be increase using : Desiccator, Chromatographic tank, Cold figner, Suction flash
A compound having small value of K(distribution coefficient) mostly remains inefficient : Stationary phase, Mobile phase, Chromatographic tank, None Of These
Deviation of gas from ideal behaviour is maximum at : 10°C and 5 atm, 10°C and 2 atm, 400°C and 2 atm, 0°C and 2atm
If the value of a and b in vander waals equation are close to zero for a gas is ideal, Non-ideal, high polar, Liquefied easily
coordination number of Na+ ion in NaCl is : 1, 2, 3, 4
vapour pressure of a liquid depends upon : Amount of liquid, Surface area, Temperature, Size of container
e-----value for postive rays is maximum for : hydrogen, Helium, Oxygen, Nitrogen
According to Bohrs atomic models radius of second orbit of hydrogen molecular orbit : 0.529°A, 2.116°A, 4.0°A, 5.0°A
Which of the following species has unpaired electron in antibonding molecular orbitals : H2, He2, O2^ 2, N2 ^ 2
A molecular orbital can contain maximum electrons equal to : 1, 2, 3, 4
Enthaply change for the reaction CH4+2O2--->Co2+2H2O is called enthaply of : Atomization, formation, Combusion, Neutralization
Ph of tomato is : 1.2, 4.2, 7.2, 9.2
In a mixture of 28 grams of 2 grams of 2 96 garms of 02 the mole fraction of N2s : 1.1, 0.51, 0.25, 0.11
By adding HNCl to NH4OH solution the ionization of NH4OH : Increases, Decreases , Remains, increase 100 times
Electrolysis is used for : Electroplating, Manufacture of sodium metal, Manufacture of Al, All Of These
The catalyst used for the reaction HCOOH---->H2+CO2 is : Copper, Alumina , Silica, Iron