[{"id":252956,"question":"Which of the following best describes the shape and polarity of the carbon disulphide molecule?","choices":[{"text":"Bent and polar","value":"A"},{"text":"Linear and non-polar","value":"B"},{"text":"Pyramidal and polar","value":"C"},{"text":"Bent and non-polar","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":252954,"question":"Total number of valence electrons in CH4","choices":[{"text":"8","value":"A"},{"text":"9","value":"B"},{"text":"10","value":"C"},{"text":"12","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":252953,"question":"In which molecule. all atoms are coplanar?","choices":[{"text":"CH4","value":"A"},{"text":"BF3","value":"B"},{"text":"NH3","value":"C"},{"text":"PH3","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":252951,"question":"Which molecule is least ionic\"","choices":[{"text":"NaCI","value":"A"},{"text":"HCL","value":"B"},{"text":"HF","value":"C"},{"text":"CsF","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":252950,"question":"Geometry of NH3 is","choices":[{"text":"<sup>Tetrahedral</sup>","value":"A"},{"text":"Square planer","value":"B"},{"text":"Pyramidal","value":"C"},{"text":"Linear","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":252948,"question":"Most reactive among the following","choices":[{"text":"Li","value":"A"},{"text":"Mg","value":"B"},{"text":"Ca","value":"C"},{"text":"Na","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":252947,"question":"Which of the following bonds is not present in NH4CL","choices":[{"text":"lonic bond","value":"A"},{"text":"Covalent bond","value":"B"},{"text":"Co-ordinate covalent bond","value":"C"},{"text":"De-localized covalent bond","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":252945,"question":"Which of the following molecules has angel of 120°","choices":[{"text":"BeCl2","value":"A"},{"text":"BF3","value":"B"},{"text":"CH4","value":"C"},{"text":"NH3","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":252942,"question":"The electrolyte used in fuel cell is","choices":[{"text":"КOH","value":"A"},{"text":"NaCl(aq)","value":"B"},{"text":"NaNO3","value":"C"},{"text":"Molten NaCl","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":252941,"question":"During space flights, astronauts ohlained water from","choices":[{"text":"Nickel cadmium cells","value":"A"},{"text":"Lead accumulator","value":"B"},{"text":"Fuel Cell","value":"C"},{"text":"Alkaline battery","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":252940,"question":"Rusting of iron metal Fe occurs when Fe gets converted into Fe2O3 What happen with Fe?","choices":[{"text":"F'e is neutralized","value":"A"},{"text":"Fe is sublimed","value":"B"},{"text":"Fe is reduced","value":"C"},{"text":"Fe is oxidized","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":252939,"question":"Which one of the following elements is the strongest reducing agent?","choices":[{"text":"Chlorine","value":"A"},{"text":"Sodium","value":"B"},{"text":"Magnesium","value":"C"},{"text":"Aluminium","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":252938,"question":"Which of the following metal does not liberate hydrogen on reaction with acid?","choices":[{"text":"Mg","value":"A"},{"text":"Pt","value":"B"},{"text":"Zn","value":"C"},{"text":"Ca","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":252937,"question":"Stronger is the oxidizing agent, stronger is the","choices":[{"text":"emf of cell","value":"A"},{"text":"Oxidation potential","value":"B"},{"text":"Reduction potential","value":"C"},{"text":"Reduction potential","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":252936,"question":"During oxidation process, oxidation number of an element","choices":[{"text":"Decreases","value":"A"},{"text":"Increases","value":"B"},{"text":"Remains constant","value":"C"},{"text":"Both a and b","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":252935,"question":"Coinage metals Cu, Ag and Au are the least reactive because they have","choices":[{"text":"Negative reduction potential","value":"A"},{"text":"Negative oxidation potential","value":"B"},{"text":"Positive reduction potential","value":"C"},{"text":"Positive oxidation potential","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":252934,"question":"The standard electrode potential of hydrogen is arbitrarily taken at 298k is","choices":[{"text":"1.00volt","value":"A"},{"text":"0.10 volt","value":"B"},{"text":"0.00 volt","value":"C"},{"text":"10.0 volt","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":252933,"question":"In an electrochemical series, elements are arranged on the basis of","choices":[{"text":"pH scale","value":"A"},{"text":"pKa scale","value":"B"},{"text":"pOH scale","value":"C"},{"text":"Hydrogen scale","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":252932,"question":"In voltaic cell a saht bridge is used in order to","choices":[{"text":"Pass the electric current","value":"A"},{"text":"Prevent the flow of ions","value":"B"},{"text":"Mix solutions of two half cells","value":"C"},{"text":"Allow movement of' ions between two cells","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":252931,"question":"The value of oxidation number of chlorine in HCIOs is","choices":[{"text":"+7","value":"A"},{"text":"+5","value":"B"},{"text":"-1","value":"C"},{"text":"+3","value":"D"},{"value":"E"}],"correctAnswer":2}]