Chemistry Which one of the following organic compound is used to remove stains of iron compounds? Benzoic acid Oxalic acid Phthalic acid Cinnamic acid Benzoic acid Oxalic acid Phthalic acid Cinnamic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen forms a variety of compounds in all oxidation states ranging from –3 to + 4 –3 to + 3 –3 to + 5 –3 to + 6 –3 to + 4 –3 to + 3 –3 to + 5 –3 to + 6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lowest layer of earth's atmosphere is Troposphere Mesosphere Ionosphere Stratosphere Troposphere Mesosphere Ionosphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry Air shows the property of O2 N2 Both A and B None of these O2 N2 Both A and B None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of improving the quality of rubber by heating it with sulphur is called. Galvanization Sulphonation Acceleration Vulcanization Galvanization Sulphonation Acceleration Vulcanization ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is obtained from sea weeds ? Argon Sulphur Iodine Vanadium Argon Sulphur Iodine Vanadium ANSWER DOWNLOAD EXAMIANS APP
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