[{"id":15669,"question":"If the solvent is inflammable for heating purpose we use","choices":[{"text":"Ice bath","value":"A"},{"text":"Water bath","value":"B"},{"text":"Wire gauze","value":"C"},{"text":"Thermostat","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":15668,"question":"Which one is not usually used for the crystallization","choices":[{"text":"Acetone","value":"A"},{"text":"Acetic acid","value":"B"},{"text":"Sulphuric acid","value":"C"},{"text":"Chloroform","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":15667,"question":"Which one is the property of an ideal solvent","choices":[{"text":"Should be expensive","value":"A"},{"text":"It should react chemically with the solute","value":"B"},{"text":"Impurities should crystallize along with the solute","value":"C"},{"text":"Should be safe to use","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":15666,"question":"Gooch crucible used to filter the solution of","choices":[{"text":"H<sub>2</sub>SO<sub>4</sub>","value":"A"},{"text":"HCI","value":"B"},{"text":"KMnO<sub>4</sub>","value":"C"},{"text":"Both B &amp; C","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":15665,"question":"Gooch crucible is used for the filtration of precipitates having","choices":[{"text":"High solubility","value":"A"},{"text":"High concentration","value":"B"},{"text":"High ignition temperature","value":"C"},{"text":"Low temperature","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":15664,"question":"By using the fluted filter paper rate of filtration is","choices":[{"text":"Increased","value":"A"},{"text":"Decreased","value":"B"},{"text":"Filtration is constant","value":"C"},{"text":"Having no effect","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":15663,"question":"During the folding of filter paper the apex form angle of about","choices":[{"text":"80<sup>o</sup>","value":"A"},{"text":"60<sup>o</sup>","value":"B"},{"text":"180<sup>o</sup>","value":"C"},{"text":"90<sup>o</sup>","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":15662,"question":"The pore size of the filter paper depends upon","choices":[{"text":"Nature of the medium","value":"A"},{"text":"Temperature of the medium","value":"B"},{"text":"Size of the particles","value":"C"},{"text":"Mass of the particles","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":15661,"question":"Which of the following process is used to separate insoluble particles from liquids?","choices":[{"text":"Separation","value":"A"},{"text":"Filtration","value":"B"},{"text":"Crystallization","value":"C"},{"text":"Condensation","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":15660,"question":"Which of the following is directly related to Qualitative analysis?","choices":[{"text":"Identification","value":"A"},{"text":"Separation","value":"B"},{"text":"Measurement","value":"C"},{"text":"Calculation","value":"D"},{"value":"E"}],"correctAnswer":1}]