[{"id":173683,"question":"Which of the following is the hardest coal?","choices":[{"text":"Pear","value":"A"},{"text":"Lignite","value":"B"},{"text":"Bituminous","value":"C"},{"text":"Anthracite","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":173682,"question":"The functional group- COOH is found in","choices":[{"text":"Carboxylic acid","value":"A"},{"text":"aldehydes","value":"B"},{"text":"alcohals","value":"C"},{"text":"easter","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":173680,"question":"Which of the following statement s is not true about fossil fuels?","choices":[{"text":"they all contain carbon","value":"A"},{"text":"They are renewable","value":"B"},{"text":"they produce pollutants when burnt","value":"C"},{"text":"they cause acid rain","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":173677,"question":"Identify which one of the following compounds is a ketron?","choices":[{"text":"(CH<sub>3</sub>)<sub>2</sub> CHOH","value":"A"},{"text":"(CH<sub>3</sub>)<sub>2</sub>CHCl","value":"B"},{"text":"(CH<sub>3</sub>)<sub>2</sub>CO","value":"C"},{"text":"(CH<sub>3</sub>)<sub>2</sub>CHCl","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":173673,"question":"General formula of alkyl radical is","choices":[{"text":"C<sub>n</sub>H<sub>2n+2</sub>","value":"A"},{"text":"C<sub>n</sub>H<sub>2n-</sub><span style=\"vertical-align: sub;\">2</span>","value":"B"},{"text":"C<sub>n</sub>H<sub>2n+1</sub>","value":"C"},{"text":"C<sub>n</sub>H<sub>2n</sub>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":173667,"question":"The strong heating of coal in retoris in the absence of air is called.","choices":[{"text":"Fractional distillation","value":"A"},{"text":"Sublimation","value":"B"},{"text":"Roasting","value":"C"},{"text":"Destructive distillation","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":173664,"question":"Main component of natural gas is","choices":[{"text":"Methane","value":"A"},{"text":"propane","value":"B"},{"text":"Butane","value":"C"},{"text":"Propene","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":173662,"question":"In laboratory urea was prepared by","choices":[{"text":"Wohler","value":"A"},{"text":"Rutherford","value":"B"},{"text":"Berzelius","value":"C"},{"text":"Dalton","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":173660,"question":"Petroleum is refined by","choices":[{"text":"Destructive distillation","value":"A"},{"text":"Fractional distillation","value":"B"},{"text":"Simple distillations","value":"C"},{"text":"Dry distillation","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":173658,"question":"Which one of the following does not contain starch","choices":[{"text":"Sugar cane","value":"A"},{"text":"Maize","value":"B"},{"text":"Barley","value":"C"},{"text":"Potatoes","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":173657,"question":"Natural gas is 85% methane, It is used to make the follwing except.","choices":[{"text":"Carbon black","value":"A"},{"text":"Ethane","value":"B"},{"text":"Propane","value":"C"},{"text":"Both b and c","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":173655,"question":"Pitch is black residue of","choices":[{"text":"Coke","value":"A"},{"text":"Coal-tar","value":"B"},{"text":"Coal","value":"C"},{"text":"Coal gas","value":"D"},{"value":"E"}],"correctAnswer":2}]