Chemistry Which one out of the following helps in burning ? Carbon monoxide Nitrogen Oxygen Carbon dioxide Carbon monoxide Nitrogen Oxygen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of these acids is not organic in origin? Lactic acid Citric acid Oxalic acid Sulphuric acid Lactic acid Citric acid Oxalic acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry In the periodic table of elements, on moving from left to right across a period, the atomic radius Remains unchanged Does not follow a definite pattern Decreases Increases Remains unchanged Does not follow a definite pattern Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is obtained from sea weeds ? Vanadium Sulphur Argon Iodine Vanadium Sulphur Argon Iodine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Browning of paper in old books is caused by Collection of dust Lack of aeration Oxidation of cellulose Frequent use Collection of dust Lack of aeration Oxidation of cellulose Frequent use ANSWER DOWNLOAD EXAMIANS APP
Chemistry The product, 9-nitroanthracene is obtained from anthracene by the action of Nitric acid and acetic acid Nitric acid and ethyl alcohol Nitric acid and acetic anhydride Nitric acid in excess Nitric acid and acetic acid Nitric acid and ethyl alcohol Nitric acid and acetic anhydride Nitric acid in excess ANSWER DOWNLOAD EXAMIANS APP
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