MCQs on Chemical Kinetics
MCQs on Chemical Kinetics The rate of a chemical reaction tells us about the reactants taking part in the reaction the products formed in the reaction how slow or fast…
MCQs on Electrochemistry
MCQs on Electrochemistry The aqueous solution of which of the following compounds is the best conductor of electric current? Acetic acid, Hydrochloric acid Ammonia Fructose Answer: (b) An increase in…
MCQs on Solid State
MCQs on Solid State How many unit cells are divided equally in a face-centred cubic lattice? 2 4 6 8 Answer: (c) A crystalline solid: changes abruptly from solid to…
MCQ on Alcohols, Phenols and Ethers
MCQ on Alcohols, Phenols and Ethers Benzenediazonium chloride on reaction with phenol in weakly basic medium gives diphenyl ether p-hydroxyazobenzene chlorobenzene Benzene Answer: (b) Phenol reacts with bromine in CS2…
MCQs on Coordination Compounds
MCQs on Coordination Compounds When 0.1 mol CoCl3(NH3)5 is combined with excess AgNO3, then 0.2 mol AgCl is obtained. The conductivity of the solution suits the 1:3 electrolyte 1:1 electrolyte…
MCQs on General principles and Processes of Isolation of Elements
MCQs on General principles and Processes of Isolation of Elements In the equation, 4M + 8CN– + H2O + O2 → 4[M(CN)2]– + 4OH–, the metal M is copper iron…
MCQs on Hydrogen Bonding
MCQs on Hydrogen Bonding Which one of the following is not an isotope of hydrogen? Deuterium Tritium Ortho hydrogen None of these Answer: (c) Out of the two allotropic forms…
MCQs on Polymers
MCQs on Polymers Nylon threads are made of polyester polymer polyamide polymer polyethylene polymer polyvinyl polymer Answer: (b) Which of the following is a branched polymer? low density polymer polyester…
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…