MCQs on Bond Energy
MCQs on Bond Energy Which bond is most polar? N-F C-O O-F C-F Answer: (d) On the basis of octet rule, which bond is not present in gaseous nitrogen pentoxide…
MCQs on Oxidation Reduction
MCQs on Oxidation Reduction The total of the oxidation number in an element is charge volatility reduction oxidation Answer: (a) The reduction is a gain of electrons protons neutros oxygen…
MCQs on Oxidation Number and Oxidation State
MCQs on Oxidation Number and Oxidation State Number of moles of K2Cr2O7 reduced by 1 mole of Sn2+ is 1/6 1/3 2/3 1 Answer: (b) The oxidation number of carbon…
MCQs on Auto Oxidation and Disproportionation
MCQs on Auto Oxidation and Disproportionation Which one of the following will not reduce an acidified solution of potassium dichromate (VI)? (CH3)2C(OH)CH3 FeSO4 CH3CH2CH(OH)CH3 Zn Answer: (a) 25.4g of iodine…
MCQs on Covalent Bonding
MCQs on Covalent Bonding The octet rule is not valid for the molecule CO2 H2O O2 CO Answer: (d) The nature of bonding in CCl4 and CaH2 is electrovalent in…
MCQs on Dipole Moment
MCQs on Dipole Moment Molecules with odd electron bond are paramagnetic unstable forms dimers at low temperature all are correct Answer: (d) In a crystal, atoms are located at the…
MCQs on Overlapping and Bonds
MCQs on Overlapping and Bonds Which of the following at ordinary temperature and pressure exists as a linear polymer due to extensive hydrogen bonding? H2O HCl HF NH3 Answer: (c)…
MCQs on Freezing Point of the Solvent
MCQs on Freezing Point of the Solvent Which one of the following gases has the lowest value of Henry’s law constant? N2 He H2 CO2 Answer: (d) If 10ml of…
MCQs on Cell Constant and Electrochemical Cells
MCQs on Cell Constant and Electrochemical Cells Oxygen has a +2 oxidation state in H2O H2O2 F2O SO2 Answer: (3) Which of the following is the strongest reducing agent? Li…
MCQs on Compounds of Transitional Elements
MCQs on Compounds of Transitional Elements The 3d transition series contains elements having an atomic number from 21 to 30 21 to 31 22 to 30 21 to 29 Answer:…
MCQs on Water or Hydride of Oxygen
MCQs on Water or Hydride of Oxygen Water is oxidised to oxygen by H2O2 KMnO4 ClO2 fluorine Answer: (d) The H-O-H bond angle in a water molecule is about 90o…
MCQs on Reversible and Irreversible Reaction
MCQs on Reversible and Irreversible Reaction The net energy change in a reversible cyclic process is 3/2 RT zero always > 0 always < 0 Answer: (b) Which of the…
MCQs on Law of Mass Action
MCQs on Law of Mass Action Which of the following is not correct? the rate law is an experimental fact, but the law of mass action is theoretical the rate…
MCQs on Kp And Kc Relationship And Characteristics Of K
MCQs on Kp And Kc Relationship And Characteristics Of K What will be the value of Kp if the Kc is 26 for a reaction, PCl5 ⇌ PCl3 + Cl2at 25o°?…
MCQs on Electrical Conductors, Arrhenius Theory and Ostwald’s Dilution Law
MCQs on Electrical Conductors, Arrhenius Theory and Ostwald's Dilution Law If a conductor length is increased, 100% then keeping all other parameters fixed, what will be the increase in power…
MCQs on Hydrogen Ion Concentration pH Scale and Buffer Solution
MCQs on Hydrogen Ion Concentration pH Scale and Buffer Solution Range of pH scale is 7 to 10 0 to 10 0 to 14 7 to 14 Answer: (c) Level…
MCQs on 2nd and 3rd Law of Thermodynamics and Entropy
MCQs on 2nd and 3rd Law of Thermodynamics and Entropy Which of the following processes is used to do maximum work done on the ideal gas that is compressed to…
MCQs on Alkane
MCQs on Alkane Which of the following conformation of n-butane is the most stable? (a) eclipsed (b) gauche (c) staggered (d) skew boat Find the correct order for relative energies…
MCQs on Alkene
MCQs on Alkene Which of the following compounds react most readily with Br(g)? (a) C2H2 (b) C3H6 (c) C2H4 (d) C4H10 When propene reacts with HBr in the presence of…
MCQs on Half-Life
MCQs on Half-Life How many milligrams of tritium will remain after 49.2 years if the starting amount is 32 mg? The half-life of tritium is 12.3 years. (a) 8 mg…
MCQs on Acid-Base Titration
MCQs on Acid-Base Titration What is the molarity of the solution of barium hydroxide, if 35 ml of 0.1 M HCl is used in the titration of 25 ml of…