[{"id":253080,"question":"Which of the following compounds is not known?","choices":[{"text":"SbCl","value":"A"},{"text":"NCl3","value":"B"},{"text":"Nl3","value":"C"},{"text":"NCl5","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253079,"question":"Which element of group V-A and VII-A does not use d-orbital?","choices":[{"text":"Nitrogen","value":"A"},{"text":"Sulphur","value":"B"},{"text":"Arsenic","value":"C"},{"text":"Chlorine","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253078,"question":"Which one of the following doesn't exhibit allotropy?","choices":[{"text":"Bi","value":"A"},{"text":"As","value":"B"},{"text":"N","value":"C"},{"text":"P","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253077,"question":"Which pair of following pair is metalloid?","choices":[{"text":"Antimony and bismuth","value":"A"},{"text":"Phosphorous and arsenic","value":"B"},{"text":"Nitrogen and phosphorous","value":"C"},{"text":"Arsenic and antimony","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253076,"question":"Which of the following elements is most metallic","choices":[{"text":"Bi","value":"A"},{"text":"sb","value":"B"},{"text":"As","value":"C"},{"text":"P","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253075,"question":"The element which exhibits maximum catenation property is","choices":[{"text":"C","value":"A"},{"text":"Pb","value":"B"},{"text":"Ge","value":"C"},{"text":"Sn","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253073,"question":"Elements of group IV-A are","choices":[{"text":"neither strongly electropositive nor strongly electronegative","value":"A"},{"text":"strongly electropositive","value":"B"},{"text":"strongly electronegative","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253072,"question":"The general electronic configuration of group IV-A elements is","choices":[{"text":"ns2, np6","value":"A"},{"text":"ns2, np4","value":"B"},{"text":"ns2, np3","value":"C"},{"text":"ns2, np2","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253070,"question":"What is the formula of silica?","choices":[{"text":"Si2O3","value":"A"},{"text":"SiO2","value":"B"},{"text":"Si3O4","value":"C"},{"text":"SiO-","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253069,"question":"<sub>What is name of hydrated variety of quartz?</sub>","choices":[{"text":"Rose quartz","value":"A"},{"text":"Smokey quartz","value":"B"},{"text":"Silica","value":"C"},{"text":"Opal","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253068,"question":"About 25% of earth crust mass is made up of element","choices":[{"text":"Oxygen","value":"A"},{"text":"Silicon","value":"B"},{"text":"Aluminium","value":"C"},{"text":"Aluminates","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253067,"question":"What is the formula of talc or soapstone?","choices":[{"text":"Na2B4O7.10H2O","value":"A"},{"text":"H2Mg3(SiO3)4","value":"B"},{"text":"Cu2S","value":"C"},{"text":"NaNO3","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253066,"question":"What is the formula of magnesite?","choices":[{"text":"PbS","value":"A"},{"text":"MgSO4. 7H2O","value":"B"},{"text":"MgCO3","value":"C"},{"text":"CaCO3","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253065,"question":"What is the formula of dolomite?","choices":[{"text":"CaMg3 (SiO3)4","value":"A"},{"text":"MgCO3","value":"B"},{"text":"MgCO3.CaCO3,","value":"C"},{"text":"MgSO4","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253064,"question":"Which is not mineral of AI?","choices":[{"text":"Diaspore","value":"A"},{"text":"Corrundam","value":"B"},{"text":"Bauxite","value":"C"},{"text":"Galena","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253063,"question":"Formula of sodium beryllite is","choices":[{"text":"Na2B4O7","value":"A"},{"text":"Na2BeO2","value":"B"},{"text":"BeONa","value":"C"},{"text":"Na2B4O7 .10 H2O","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253062,"question":"What is the formula of clay?","choices":[{"text":"Asbestos","value":"A"},{"text":"Talc","value":"B"},{"text":"H2Al2(SiO4)2.H2O","value":"C"},{"text":"Na2SiO3","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253061,"question":"What is the formula of cryolite?","choices":[{"text":"Al2O3.2H2O","value":"A"},{"text":"Na2B4O7 .10 H2O","value":"B"},{"text":"Na3AIF6","value":"C"},{"text":"Ca2B6O11. 5H2O","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253060,"question":"What is the formula of bauxite?","choices":[{"text":"Al2O3.2H2O","value":"A"},{"text":"Al2O3","value":"B"},{"text":"Na2B4O7 .10 H2O","value":"C"},{"text":"Ca2B6O11. 5H2O","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253058,"question":"Corrundam is ore of which element?","choices":[{"text":"Al","value":"A"},{"text":"Th","value":"B"},{"text":"In","value":"C"},{"text":"Mg","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253057,"question":"Which alkaline earth metal makes peroxide?","choices":[{"text":"Ba","value":"A"},{"text":"Be","value":"B"},{"text":"Mg","value":"C"},{"text":"Ca","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253056,"question":"Which of the following element has high m.p and b.p, it acts as a reducing agent, and can react with bases?","choices":[{"text":"Sr","value":"A"},{"text":"Ca","value":"B"},{"text":"Be","value":"C"},{"text":"Mg","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253055,"question":"How magnesium reacts with water?","choices":[{"text":"In frozen ice water","value":"A"},{"text":"With cold water","value":"B"},{"text":"In with steam","value":"C"},{"text":"In hot state","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253053,"question":"One of the following does not give the flame test. Which is that","choices":[{"text":"Sr","value":"A"},{"text":"Bа","value":"B"},{"text":"Be","value":"C"},{"text":"Na","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253052,"question":"Asbestos is commonly used in making","choices":[{"text":"wall board","value":"A"},{"text":"black board","value":"B"},{"text":"soft board","value":"C"},{"text":"hard board","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253051,"question":"Plaster of Paris is obtained from","choices":[{"text":"marble","value":"A"},{"text":"bauxite","value":"B"},{"text":"gypsum","value":"C"},{"text":"limestone","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253048,"question":"Elements of II-A group are called alkaline earth metals due to the reason that","choices":[{"text":"they occur in earth only","value":"A"},{"text":"they form divalent cations only","value":"B"},{"text":"they have ns2 electronic configuration","value":"C"},{"text":"their oxides and hydroxides are alkaline in nature and metals are present in earth crust","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253047,"question":"Which of the following configurations corresponds to alkaline earth metals?","choices":[{"text":"[Ar] 3d10, 4s2","value":"A"},{"text":"[Ne] 3d2, 3p2","value":"B"},{"text":"[Ar] 4s2","value":"C"},{"text":"[Ar], 3d10, 4s1","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253046,"question":"Beryllium differs from other elements of group Il-A due to","choices":[{"text":"high charge density","value":"A"},{"text":"comparatively high nuclear charge","value":"B"},{"text":"small radius","value":"C"},{"text":"all above","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253045,"question":"Which element differs from rest of elements of its group?","choices":[{"text":"Ba","value":"A"},{"text":"Mg","value":"B"},{"text":"Ca","value":"C"},{"text":"Be","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253044,"question":"The alkaline earth metals are called so because they","choices":[{"text":"form alkaline solution and are present in earth crust as minerals","value":"A"},{"text":"form alkaline solution and are found in nature states","value":"B"},{"text":"are present in earth crust","value":"C"},{"text":"are present in earth crust as their minerals","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253042,"question":"Elements of group ll-A are called","choices":[{"text":"f-block elements","value":"A"},{"text":"s-block elements","value":"B"},{"text":"p-block elements","value":"C"},{"text":"d-block elements","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253041,"question":"Soda lime is often employed to remove both","choices":[{"text":"H2O and NO2","value":"A"},{"text":"CO2, and NO2,","value":"B"},{"text":"H2O and CO2","value":"C"},{"text":"H2S and CO2","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253039,"question":"Li resembles with Mg, because","choices":[{"text":"the ratio of their charge to size is nearly the same","value":"A"},{"text":"both have nearly same size","value":"B"},{"text":"both are metallic in nature","value":"C"},{"text":"both are found together in nature","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253038,"question":"Compared with alkaline earth metals, the alkali metals exhibit.","choices":[{"text":"lower ionization energies","value":"A"},{"text":"greater hardness","value":"B"},{"text":"high boiling point","value":"C"},{"text":"smaller ionic radii","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253037,"question":"Which of the following belongs to alkaline earth metals","choices":[{"text":"Cu","value":"A"},{"text":"Zn","value":"B"},{"text":"Sn","value":"C"},{"text":"Mg","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253035,"question":"Which of the following are not known to form compounds in more than one oxidation state?","choices":[{"text":"Transition metals","value":"A"},{"text":"Halogens","value":"B"},{"text":"Alkali metals","value":"C"},{"text":"Noble gases","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253032,"question":"Which set of elements is good loser of electrons","choices":[{"text":"F2. Cl2, Br2","value":"A"},{"text":"N, P. As","value":"B"},{"text":"O. S, Se","value":"C"},{"text":"Li, Na, K","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253031,"question":"Which one of the following elements is most electropositive out of group I -A and II-A group?","choices":[{"text":"K","value":"A"},{"text":"Mg","value":"B"},{"text":"Na","value":"C"},{"text":"Ca","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253030,"question":"Which of the following does not give flame test?","choices":[{"text":"Li","value":"A"},{"text":"Ba","value":"B"},{"text":"Mg","value":"C"},{"text":"Sr","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253029,"question":"The elements of group I-A react violently with water and make the solution","choices":[{"text":"neutral","value":"A"},{"text":"amphoteric","value":"B"},{"text":"acidic","value":"C"},{"text":"alkaline","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253027,"question":"Which is the least reactive of all the alkali metals","choices":[{"text":"Li","value":"A"},{"text":"Na","value":"B"},{"text":"K","value":"C"},{"text":"Cs","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":253025,"question":"One of the following metals is the most reactive and form super oxide. Indicate that","choices":[{"text":"Mg","value":"A"},{"text":"K","value":"B"},{"text":"Be","value":"C"},{"text":"Li","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253022,"question":"Lithium differs from rest of members of its group due to which of following reasons","choices":[{"text":"High E.N of Li+1","value":"A"},{"text":"Small radius","value":"B"},{"text":"High charge density","value":"C"},{"text":"All above are correct","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253019,"question":"Which one of following property is not true about alkali metals?","choices":[{"text":"Strongest bases due to their hydrides","value":"A"},{"text":"Low ionization energy","value":"B"},{"text":"Oxidation number more than +1","value":"C"},{"text":"Form acidic oxides","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253018,"question":"Which one of the following elements is not an alkali metal?","choices":[{"text":"Na","value":"A"},{"text":"Sr","value":"B"},{"text":"Cs","value":"C"},{"text":"Rb","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253014,"question":"A molecule which contains two lone pairs and two bond pairs of electrons in valence shell of central atom, geometrical shape of molecules will be","choices":[{"text":"Tetrahedral","value":"A"},{"text":"Trigonal pyramidal","value":"B"},{"text":"Angular","value":"C"},{"text":"Linear","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253013,"question":"What will be the shape of a molecule which containstwo sigma bond pairs and one lone pair?","choices":[{"text":"Linear","value":"A"},{"text":"V shape","value":"B"},{"text":"Tetragonal","value":"C"},{"text":"Triangular","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253012,"question":"The shielding effect of inner electron is responsible for","choices":[{"text":"Having no effect on ionization energy","value":"A"},{"text":"Decreasing ionization energy","value":"B"},{"text":"Increasing ionization energy","value":"C"},{"text":"Increasing electronegativity","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253011,"question":"The elements for which the value of ionization energy is low can","choices":[{"text":"Gain electrons readily","value":"A"},{"text":"Lose electron less readily","value":"B"},{"text":"Gain electrons with difficulty","value":"C"},{"text":"Lose electron readily","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253010,"question":"The ionization energy of hydrogen atom is","choices":[{"text":"Zero","value":"A"},{"text":"131.3kJmole","value":"B"},{"text":"13.13kJ/mole","value":"C"},{"text":"1313kJ/mole","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253008,"question":"<div>For formation of ionic bond, electronegativity difference should be</div>","choices":[{"text":"Equal to zero","value":"A"},{"text":"Equal to 0.5","value":"B"},{"text":"More then 1.7","value":"C"},{"text":"Less than 1.7","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253006,"question":"Which of the following molecule has zero dipole moment?","choices":[{"text":"PCI3","value":"A"},{"text":"BF3","value":"B"},{"text":"NH3","value":"C"},{"text":"H2O","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253005,"question":"Among the following molecules, which one has coordinate covalent (dative) bond?","choices":[{"text":"CCI4","value":"A"},{"text":"CO2","value":"B"},{"text":"CO","value":"C"},{"text":"CH4","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":253004,"question":"Which one of the following has zero dipole moment","choices":[{"text":"NH3","value":"A"},{"text":"CHCI3","value":"B"},{"text":"H2O","value":"C"},{"text":"BF3","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253003,"question":"Low IE is a symbol of","choices":[{"text":"high electronegativity","value":"A"},{"text":"small size","value":"B"},{"text":"High electron affinity","value":"C"},{"text":"Metallic character","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":253002,"question":"At compromise distance the forces dominating between atoms are","choices":[{"text":"repulsive forces","value":"A"},{"text":"attractive forces","value":"B"},{"text":"Dipole induced dipole force","value":"C"},{"text":"H-bonding","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":253000,"question":"What is not true for NH4CI","choices":[{"text":"It has ionic bond","value":"A"},{"text":"It has covalent bond","value":"B"},{"text":"It has coordinate bond","value":"C"},{"text":"It has hydrogen bond","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":252999,"question":"H3O+ can't accept a Ip because","choices":[{"text":"it has positive charge","value":"A"},{"text":"The central atom is not electron deficient","value":"B"},{"text":"The shell of oxygen has reached its limit","value":"C"},{"text":"it already has a coordinate bond","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":252997,"question":"What is true for a molecule with standard geometry","choices":[{"text":"It lacks a Ip","value":"A"},{"text":"It can't be a donor","value":"B"},{"text":"It can be an acceptor","value":"C"},{"text":"All","value":"D"},{"value":"E"}],"correctAnswer":4}]