Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuO CuCO3 Cu(OH)2 CuSO4 Cu(NO3)2 CuO CuCO3 Cu(OH)2 CuSO4 Cu(NO3)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in developing photographic films is Sodium sulphate Silver bromide Hydroquinone Hypo Sodium sulphate Silver bromide Hydroquinone Hypo ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one element from below list is liquid at room temperature Argon Zinc Lead Bromine Argon Zinc Lead Bromine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ferrous sulphate is used in water treatment as a/an Coagulant aid Adsorbent Reducing agent Oxidizing agent Coagulant aid Adsorbent Reducing agent Oxidizing agent ANSWER DOWNLOAD EXAMIANS APP
Chemistry Limestone is a raw material used by which industry? Cement Petrochemicals Aluminium Fertilizers Cement Petrochemicals Aluminium Fertilizers ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant metal in the Earth’s crust is Iron Copper Zinc Aluminium Iron Copper Zinc Aluminium ANSWER DOWNLOAD EXAMIANS APP
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