381 In a period the atomic radius ? Chemistry Medium Full question → A Increases B Decreases C Remain same D First decreases then increases
382 Force responsible to hold atoms together in a compound is called ________________? Chemistry Medium Full question → A Bond B Attractive force C Interaction D All of above represent same entity
383 A specie with maximum number of unpaired electrons ? Chemistry Medium Full question → A F B H2O C HF D NH-2
384 Measurement of the degree of polarity is___________________? Chemistry Medium Full question → A Electron affinity B Ionic character C Ionization energy D Dipole moment
385 In O2 each oxygen atom is hybridized_________________? Chemistry Medium Full question → A sp3 B sp2 C sp D All
386 Which one is not the absolute term of the element _________________ ? Chemistry Medium Full question → A Ionization energy B Electron affinity C Electro negativity D Atomic size
387 Which of the following is the best explanation that CO2 is non polar molecule __________________? Chemistry Medium Full question → A Linear geometry B Dipole moment is zero C Sp hybridization D None
388 The octet rule does not always hold for which of the following elements _________________? Chemistry Medium Full question → A C B O C F D P
389 Which type of bond is formed by overlap of p orbitals _______________? Chemistry Medium Full question → A Pi B Sigma C Both D Neither
390 The ionization energy__________________? Chemistry Medium Full question → A Generally increases from left to right in a period B Does not change in a period C Increase from top to bottom in a group D Does not change in a group
391 Shaking two immiscible liquids increases_________________? Chemistry Medium Full question → A Length of contact B Volume of contact C Area of contact D all of above
392 Which is not a sublime material_______________? Chemistry Medium Full question → A Iodine B Benzoic acid C Ammonium chloride D Potash alum
393 Selection of filter paper depends on size of particles to be________________? Chemistry Medium Full question → A filtered B dried C decolorized D decanted
394 Conversion of reactant into product in unit time is called________________? Chemistry Medium Full question → A rate of forward reaction B rate of backward reaction C rate constant D rate co-efficient
395 Reaction which proceeds in both directions is called_______________? Chemistry Medium Full question → A reversible B irreversible C spontaneous D non-spontaneous
396 Which one of the following aqueous solutions will be basic ? Chemistry Medium Full question → A NaCI B Na2SO4 C Na2CO3 D FeCl3
397 For a reaction involving only gases at 25?C the equilibrium constant can be expressed in terms of molarity Ke or partial pressure Kp. Which is true about the numerical value of Kp ? Chemistry Medium Full question → A Kc is generally greaer than Kp B Kc is generally less than Kp C Kc is generally equal to Kp D Kc is equal to Kp if the total moles of reactants and products are equal
398 Which of the following will not change the concentration of ammonia at the equilibrium ? Chemistry Medium Full question → A Increase of pressure B Increase of volume C Addition of catalyst D Decrease of temperature
399 AgCl dissolved with conc (2×10-2) Ksp will be__________________? Chemistry Medium Full question → A 3.6 x 10-6 B 3.6 x 10-5 C 7.2 x 10-6 D 4 x 10-4
400 If a buffer solution of higher pH than seven is to be made we use___________________? Chemistry Medium Full question → A Strong acid and strong base B Weak acid and strong base C Weak acid and strong base D Weak acid and its salt with strong base