Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuCO3 Cu(OH)2 CuO CuSO4 Cu(NO3)2 CuCO3 Cu(OH)2 CuO CuSO4 Cu(NO3)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Vinegar' is a commercial name of Oxalic acid Citric acid Hydrochloric acid Acetic acid Oxalic acid Citric acid Hydrochloric acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bleaching powder is used in drinking water as a/an Antiseptic Disinfectant Coagulant Antibiotic Antiseptic Disinfectant Coagulant Antibiotic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms of same element having different mass numbers are called________ Isomers Isotopes Isotones Isobars Isomers Isotopes Isotones Isobars ANSWER DOWNLOAD EXAMIANS APP
Chemistry Substance used as an anti freeze in radiators of automobiles is : Methyl alcohol Ethyl alcohol Methyl alcohol and H2O Ethyl alcohol and H2O Methyl alcohol Ethyl alcohol Methyl alcohol and H2O Ethyl alcohol and H2O ANSWER DOWNLOAD EXAMIANS APP
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