0% 1 Chemistry Quiz 1 1 / 50 The pH of milk is_______? 9 8 12 6.5-7 2 / 50 In which of the following pairs are elements belonging to the same group ? Boron & Beryllium Nitrogen & Phosphorous Gallium & Helium Magnesium & Aluminium 3 / 50 One mole of an ideal gas at 546.5 K under 2 atm pressure has a volume of________________? 44.828 dm3 11.212 cm3 22.414 m3 22.414 dm3 4 / 50 The letters s p d and f are used to represent which quantum numbers________________? Spin Magnetic Principal Azimuthal 5 / 50 Which of the following will be acidic_____________? 1-butyne propyne all of the above ethyne 6 / 50 The determination of correct molecular weight from Raoults law is applicable to_________________? a non-electrolyte & non volatile solute in concentrated solution a volatile solute in dilute solution a non-electrolyte & non volatile solute in concentrated solute non volatile solute in a dilute solution 7 / 50 0.5 mole of nitrogen gas and 0.5 mole of carbon monoxide gas at STP have same_____________? Atoms Value of a Mass Both B and C 8 / 50 Which of the following air pollutants is more dangerous for ozone layer ? Oxides of nitrogen CO2 CFC CO 9 / 50 Which of the following is not characteristics of reversible reaction__________________? chemical equilibrium is established rate of forward reaction decreases as reaction proceeds a catalyst changes the direction of reaction whole amount of reactant does not change into product 10 / 50 When benzene is heated in air with V2O5 at 450?C yields_________________? Phenol Glyoxal Benzoic acid Maleic anhydride 11 / 50 Which is true about Zn-Cu galvanic cell ? Oxidation occurs at cathode Anode is negatively charged Reduction occurs at anode K+ ion transfer from salt bridge to left beaker of ZnSO4 12 / 50 The hydrogenation of phenol in the presence of Ni and heat gives_________________? n ? hexane cyclohexane cyclohexanol 1 ? hexanol 13 / 50 The mass of 3.2 moles of ammonia (NH3) gas? 55.4 grams 54.4 grams 56.4 grams 53.4 grams 14 / 50 A malleable solid is one which can be_________________? Converted into thin sheets Melted easily All of the above Converted into wires 15 / 50 Isomerism which is present only in alkene is__________________? metamerism both b and c cis-trans isomerism structural isomerism 16 / 50 Parke?s process is used in the extraction of________? Iron Zinc Silver Sodium 17 / 50 The hardest of the following solids is__________________? diamond graphite magnesium sodium 18 / 50 The organic compounds having very high molecular weight are called _________________? carboxylic acids ketones aldehydes polymers 19 / 50 Geometry of simple molecule having sp3 hybrid orbital is ___________________? Square planner Triangular Linear Tetrahedral 20 / 50 Stronger the oxidizing agent greater is the________________? Redox potential Reduction potential emf of cell Oxidation potential 21 / 50 Which one can form complex ? Na Cr Li K 22 / 50 The hydrolysis of Benzenetrizonide will yield three moles of____________________? Glyoxal Glycol Glyoxime Benzaldehyde 23 / 50 Aluminium oxide is_________________? Amphoteric oxide Acidic oxide It does not exists Basic oxide 24 / 50 Regular coiling or zigzagging of polypeptide through hydrogen bonding is its_______________? Quantum structure Secondary structure Tertiary structure Primary structure 25 / 50 When substance moves from a solid to a liquid state all of the following changes occur except__________________? Molecule become further separated K.E of the molecules decreases Intermolecular forces become weaker Molecules become more disordered 26 / 50 Transition elements, in general, exhibit the following properties, except one. Name that property? Variable oxidation state Natural Radioactivity Tendency to form complexes Formation of alloys 27 / 50 Picric acid is_________________? aromatic carboxylic acid none of these dicarboxylic acid monocarboxylc acid 28 / 50 When 0.5 mole of phosphoric acid is dissolved in aqueous solution how many moles of -ve and +ve ions are collected altogether ? 1 2 0.5 1.5 29 / 50 Benzene does not undergo___________________? Substitution reaction Oxidation reactions Polymerization reactions Addition reaction 30 / 50 The Chemical Formula of Sand is___________? SiO2 Si2O3 Al2O3 Sr2O 31 / 50 Negative log of mular concentration of H+ ions is called___________________? pKw pOH pKa pH 32 / 50 The nucleus of an atom of every element will always contain____________________? protons protons and electrons protons and neutrons neutrons 33 / 50 The Branch of chemistry dealing with brewing and distilling is called _______ ? Zootaxy Zymology Zymurgy Zygology 34 / 50 Which of the following solutions of H2SO4 is more concentrated ? all have same concentration 1 normal solution 1 molal solution 1 Molar solution 35 / 50 Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is___________________? sixteen / seventeen one / three one / seventeen two / three 36 / 50 When cationic molecular ions are allowed to pass through strong magnetic field in mass spectrometer which of the following ions is fallen__________________? intermediate heavier lighter are collected at same time 37 / 50 The rate of reaction___________________? Remains the same as the reaction proceeds Increases as the reaction proceeds May decrease or increase as the reaction proceeds Decreases as the reaction proceeds 38 / 50 The unit of the rate constant (k) is same as that of rate of reaction________________? Zero order reaction First order reaction Third order reaction Second order reaction 39 / 50 The purpose of Smelting an ore is to________? Reduce it Obtain an alloy Separate volatile impurities Oxidize it 40 / 50 The atomic number of an element having maximum number of unpaired electrons in p-subshell is_______________? 7 10 16 12 41 / 50 Which of the following is not a fatty acid ? Acetic acid Propanoic acid Phthalic acid Butanoic acid 42 / 50 When electron jump into orbit 1 then series obtained is___________________? Pfund Lyman Brackett Paschen 43 / 50 A safe and more reliable method for drying the crystal is__________________? folds of filter paper Hot air currents oven Vacuum desiccator 44 / 50 The value of e/m ratio of electron is________________? 1.7588 x 1011 C/kg 6.02 x 1023 C/kg 9.1095 x 10-31 C/kg 1.7588 x 1020 C/kg 45 / 50 Which one of the following will be sulphonated readily ? Toluene Benzene Nitrobenzene Chlorobenzene 46 / 50 All of the following substances are crystalline except_____________? Plastic Ice Diamond Sucrose 47 / 50 Protein attached to some non protein group is called____________________? Derived protein Proteoses Conjugated protein Sample protein 48 / 50 Nucleic acids direct the synthesis of__________________? Proteins Glucose Triglycerides All 49 / 50 Which of the following is the weakest reducing agent ? HC HF HBr HI 50 / 50 The mass of decimole of electrons (NA) is___________________? 1.008 mg 0.054 mg 0.184 mg 5.4 mg Provide Your Information Your score is The average score is 38% LinkedIn Facebook Twitter 0% Restart quiz Send feedback Share on facebook Facebook Share on twitter Twitter Share on whatsapp WhatsApp Chemistry Quiz 2Next
