Chemistry Highest percentage of carbon is found in which form of coal? Peat Anthracite Bituminous Lignite Peat Anthracite Bituminous Lignite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of an addition reaction an oxidation reaction a condensation reaction an elimination reaction an addition reaction an oxidation reaction a condensation reaction an elimination reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Match the List-I with List-II and select the correct answer using the codes given below the listsList-I (Green house gas)List-II(Major source)F.Carbondioxide1.Enteric fermentation in cattleG.Methane2.Burning of fossilH.Chloroflro carbons3.Mercury compounds in waste waterJ.Nitrous oxide4.Nylon production 5.Air conditioner and refrigeration unitsCodes :FGHJA.2154B.3421C.3241D.1234 B D A C B D A C ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compound that has the least value for octane number is : 2-methyl heptane Iso-octane N-heptane 2,2-dimethyl hexane 2-methyl heptane Iso-octane N-heptane 2,2-dimethyl hexane ANSWER DOWNLOAD EXAMIANS APP
Chemistry A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? From blue to pink From pink to blue-green From brown to orange-red From brown to blue-black From blue to pink From pink to blue-green From brown to orange-red From brown to blue-black ANSWER DOWNLOAD EXAMIANS APP
Chemistry One carat of diamond is equal to 100 mg 250 mg 150 mg 200 mg 100 mg 250 mg 150 mg 200 mg ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS