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Which of the following has least mass ? 1 mol of o2, 7 gram of Ag, 3.01 X 10 ^23 atoms of C, 2 grams atoms of N
The Partial pressure of H2 in flash containing 2 grams of h2 and 16 grams of o 2 is ------- : 1 Over 4 , 2 Over 3, 1 Over 6 , 1 Over 8
Boiling point of solution is independent of ------- : Nature of Solvent, Amount of solution, Pressure, Concentration of Solution
N + 1 Value for an orbital A is 2 + 1 = 3 while for B is 3 + 0 = 3 .the energy is -------- : A >B, B > A, A = B, Cannot be predicted
For The reaction N2 + 3 H2 ? 2 Nh3 ?H = - 92 mol-1 Which of the following gives the greatest yield of NH3 : Adding a cataalyst, Decreasing the temperature and pressure , Decreaseing the temperature & increa
Joule Thomson expansion of an ideal gas produces : Heating , Cooling, Gas liaqefies, No changes in temperature
The frequency of X-rays having wavelength of 4 A° (Angstrom ) is -------- : 1.33 X 10 ^ 18 Hz, 2 X 10 ^ 18 Hz, 7.5 X 10 ^ 17 Hz, 2.6 X 10 ^ 10 Hz
A solution of glucose is 10 % w/v. The Volume in which one mol of it is dissolved will be ----- : 1 dm3, 1.8dm3, 10 dm3, 18dm3
If the energy of activated complex lies closed to the energy of reactants ,it means that the reaction is : Slow, Fast, Reaction does not take place , Endothermic
After three half lives of reaction ,the % fraction of the amount left is ------ : 0.75, 0.5, 0.125, 0.25
For the reaction H2 + I2 ? 2hI the value of Kc =64 .if the volume of the container is reduced to one half of its original volume the volume of Kc is -------- : 48, 16, 64, 32
Which of the following solutes will depress the freezing point of water the least .if one mole of each is added : NaCl, CaCl, C6H12o4, AlCl
How many moles of oxygen atoms are there in 0.5 moles of Ca(Clo) ? 3 Moles, 6 Moles, 0.5 Moles, 1 Moles
Which metal will dissolved in galvanic cell containing copper and silver electrodes ? ( Cu fCu =0.341 Ag Ag = -0.801) Copper, Silver, Both A and B, None Of These
What is the unit cell with crystallographic dimensions a = b Not equal c and a = beta = y = 90° Cubic, Tetragonal, Monoclinic, Rhombic
For a chemical reaction CH3COOH ? CH3COO + h4-------- : ?H < zero, ? H =O, ? H > Zero, ? H = negative
During the electrolysis of aqueous solution of Nacl using inert electrodes ------ : H2 liberates at cathode, Cl2 liberates cathode, Na deposits at anode, O2 evolves at anode