Chemistry The formula C6H5-CO-CH3 represents Acetic acid Acetophenone Acetone Phenyl acetate Acetic acid Acetophenone Acetone Phenyl acetate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The octane number of zero is assigned to 3-methyl octane n-heptane 2-methyl octane iso-octane 3-methyl octane n-heptane 2-methyl octane iso-octane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is pure matter ? Air Carbon–dioxide Brass Iron Air Carbon–dioxide Brass Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry White phosphorus is generally kept under Alcohol Water Kerosene oil Glycerine Alcohol Water Kerosene oil Glycerine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . Ultraviolet rays (UV) X–rays Infra-red (IR) Gamma rays Ultraviolet rays (UV) X–rays Infra-red (IR) Gamma rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to increase the anti-knocking property of petrol ? Triethyl lead Trimethyl lead Tetraethyl lead Tetramethyl lead Triethyl lead Trimethyl lead Tetraethyl lead Tetramethyl lead ANSWER DOWNLOAD EXAMIANS APP
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