Chemistry Stains of rust on clothes can be removed by : H2O2 Alcohol Petrol Oxalic acid H2O2 Alcohol Petrol Oxalic acid 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 an elimination reaction a condensation reaction an addition reaction an oxidation reaction an elimination reaction a condensation reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is obtained from sea weeds ? Sulphur Vanadium Argon Iodine Sulphur Vanadium Argon Iodine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following contributes largely to the ‘green house effect’ ? Ozone Water vapour Carbon dioxide Carbon monoxide Ozone Water vapour Carbon dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion of Ozone layer is mainly due to Aviation fuels Volcanic eruptions Radioactive rays Chlorofluorocarbons Aviation fuels Volcanic eruptions Radioactive rays Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The residue left after extracting juice from sugarbeet and sugarcane is called Molasses Bagasse Whey Biomass Molasses Bagasse Whey Biomass ANSWER DOWNLOAD EXAMIANS APP
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