Chemistry Which one of the following organic compound is used to remove stains of iron compounds? Phthalic acid Benzoic acid Cinnamic acid Oxalic acid Phthalic acid Benzoic acid Cinnamic acid Oxalic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a method/process of disposing of solid waste which cannot be reused or recycled ? Pyrolysis and Gasification Incineration All listed here Landfills Pyrolysis and Gasification Incineration All listed here Landfills ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful SO2 in the air Solar infrared radiation Solar ultraviolet radiation CO2 in the air SO2 in the air Solar infrared radiation Solar ultraviolet radiation CO2 in the air ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of naturally occurring elements 110 92 62 98 110 92 62 98 ANSWER DOWNLOAD EXAMIANS APP
Chemistry A balloon filled with helium rises in air because The balloon is weightless Helium pushes down on the air below the balloon Helium is less dense than air Air exerts an upward force on the balloon The balloon is weightless Helium pushes down on the air below the balloon Helium is less dense than air Air exerts an upward force on the balloon ANSWER DOWNLOAD EXAMIANS APP
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