241 Most of thermodynamic parameters are_________________? Chemistry Medium Full question → A system B surrounding C phase D state functions
242 Enthalpy of a reaction can be measured by ____________________? Chemistry Medium Full question → A glass calorimeter B manometer C Barometer D thermometer
243 Which one of the following is a state function ________________? Chemistry Medium Full question → A pressure B temperature C enthalpy D all of the above
244 Pumping of water uphill is_______________? Chemistry Medium Full question → A spontaneous process B non-spontaneous process C irreversible process D reversible process
245 Reaction in which heat evolves is called ____________________? Chemistry Medium Full question → A endothermic B spontaneous C non-spontaneous D exothermic
246 Anything which depends upon initial and final state of a system is_______________? Chemistry Medium Full question → A environment B surrounding C state function D enthalpy
247 The environment in which a system is studied is __________________? Chemistry Medium Full question → A State function B phase C surrounding D state
248 A reaction has values of ?H and ?S which are both positive. The reaction __________________? Chemistry Medium Full question → A Is spontaneous B Spontaneity is temperature dependent C Has an increasing free energy D Is non-spontaneous
249 If internal energy of the system is increased ____________________? Chemistry Medium Full question → A Change in state of the system is increased B Temperature of the ystem may rise C Chemical reaction may take place D All
250 Which one is not state function ________________? Chemistry Medium Full question → A Internal energy B Enthalpy C Gibbs free energy D Work
251 Increase in atomic number is observed during_________________? Chemistry Medium Full question → A Alpha emission B Beta emission C Both A & B D Radioactivity
252 The number of fundamental particles in an atom of the lightest isotope carbon are_______________? Chemistry Medium Full question → A 6 B 12 C 18 D 20
253 Atom cannot be divided into simple unitstheorized by________________? Chemistry Medium Full question → A Rutherford B Dalton C Bohr D Schrodinger
254 The velocity of the photon____________________? Chemistry Medium Full question → A Is independent of wavelength B Depends upon source C Depends upon its frequency D Equals to the square of amplitude
255 The relationship between energy of a photon of light and its frequency is given by________________? Chemistry Medium Full question → A de-Broglie duel nature of matter B Bohrs model C Plancks Quantum theory D Rutherfords atomic model
256 Positive rays are produced__________________? Chemistry Medium Full question → A By burning of gas B By cooling of the gas C By the bombardment of cathode rays on gas molecules D From anode like cathode rays produced from cathode
257 Colour of fluorescene produced by cathode rays depends upon________________? Chemistry Medium Full question → A Temperature B Pressure C Volume D Composition of glass
258 The atomic number of an element having maximum number of unpaired electrons in p-subshell is_______________? Chemistry Medium Full question → A 7 B 10 C 12 D 16
259 The letters s p d and f are used to represent which quantum numbers________________? Chemistry Medium Full question → A Principal B Azimuthal C Magnetic D Spin
260 Three quantum number have been derived from equation of____________________? Chemistry Medium Full question → A de-Broglie B Plancks C Schrodinger D Heisenberg