[{"id":140188,"question":"Which one of the halogen acid is a liquid?","choices":[{"text":"HF","value":"A"},{"text":"HCl","value":"B"},{"text":"HBr","value":"C"},{"text":"Hl","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":140187,"question":"Bromine is obtained on a commercial scale from","choices":[{"text":"Caliche","value":"A"},{"text":"Carnallite","value":"B"},{"text":"Common satl","value":"C"},{"text":"Cryolite","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":140186,"question":"Dilute hydrochloric acid solution cannot be concentrated by boiling beyond","choices":[{"text":"11%","value":"A"},{"text":"33%","value":"B"},{"text":"44%","value":"C"},{"text":"22%","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":140185,"question":"Which of the following halogens does not form its oxyacids?","choices":[{"text":"F","value":"A"},{"text":"Cl","value":"B"},{"text":"Br","value":"C"},{"text":"I","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":140184,"question":"Which is the most volatile compound?","choices":[{"text":"HI","value":"A"},{"text":"HCl","value":"B"},{"text":"HBr","value":"C"},{"text":"HF","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":140183,"question":"Sea weeds are important source of","choices":[{"text":"Iron","value":"A"},{"text":"Chlorine","value":"B"},{"text":"Iodine","value":"C"},{"text":"Bromine","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":140182,"question":"When sulphur is boiled with Na<sub>2</sub>SO<sub>3</sub>solution, the compound formed is","choices":[{"text":"sodium sulphides","value":"A"},{"text":"Sodiums sulphates","value":"B"},{"text":"Sodium persulphate","value":"C"},{"text":"Sodium thiosulphate","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":140181,"question":"Oleum is","choices":[{"text":"Castor oil","value":"A"},{"text":"Oil of vitriol","value":"B"},{"text":"Fuming of H<sub>2</sub>SO<sub>4</sub>","value":"C"},{"text":"None of them","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":140180,"question":"The number of unpaired electrons in the p-subshell of oxygen atom","choices":[{"text":"1","value":"A"},{"text":"2","value":"B"},{"text":"3","value":"C"},{"text":"4","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":140179,"question":"Ozane is not","choices":[{"text":"An allotrope","value":"A"},{"text":"A powerful oxidizing agent","value":"B"},{"text":"Paramegnetic","value":"C"},{"text":"a bent molecule","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":140178,"question":"Which of the following is acidic?","choices":[{"text":"SO<sub>3</sub>","value":"A"},{"text":"N<sub>2</sub>O","value":"B"},{"text":"BeO","value":"C"},{"text":"HgO","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":140177,"question":"Which of the following oxides is peroxide?","choices":[{"text":"Na<sub>2</sub>O<sub>2</sub>","value":"A"},{"text":"MnO<sub>2</sub>","value":"B"},{"text":"BaO","value":"C"},{"text":"SO<sub>2</sub>","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":140176,"question":"Bond angle is minimum for","choices":[{"text":"H<sub>2</sub>O","value":"A"},{"text":"H<sub>2</sub>S","value":"B"},{"text":"H<sub>2</sub>Se","value":"C"},{"text":"H<sub>2</sub>Te","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":140175,"question":"Hypo is used to photography for","choices":[{"text":"Developing picture","value":"A"},{"text":"Picture printed","value":"B"},{"text":"The colour of picture","value":"C"},{"text":"The fixation of picture","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":140174,"question":"As a fixing agent in photography, sodium thisoulphate is used for","choices":[{"text":"Dissolving out unreacted silver bromide","value":"A"},{"text":"Converting silver halides to metallic silver","value":"B"},{"text":"Reducing solubility of AgBr","value":"C"},{"text":"Preventing overdeveloping and fogging.","value":"D"},{"value":"E"}],"correctAnswer":1}]