Chemistry Nitrogen in water is commonly found in the form of Nitrite Nitric oxide Nitrate Nitrous oxide Nitrite Nitric oxide Nitrate Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main source of Naphthalene is Coal-tar Camphor Charcoal Diesel Coal-tar Camphor Charcoal Diesel ANSWER DOWNLOAD EXAMIANS APP
Chemistry When cathode rays strike a target of high atomic weight, they give rise to ? and ? rays Positive rays ?-rays X-rays ? and ? rays Positive rays ?-rays X-rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief constituent of vinegar is Salycylic acid Formic acid Acetic acid Oxalic acid Salycylic acid Formic acid Acetic acid Oxalic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry High concentration hydrocarbon pollutants in atmospheric air causes Reduced crop yield Cancer Silicosis Respiratory diseases (e.g.asthma) Reduced crop yield Cancer Silicosis Respiratory diseases (e.g.asthma) ANSWER DOWNLOAD EXAMIANS APP
Chemistry Browning of paper in old books is caused by Collection of dust Oxidation of cellulose Lack of aeration Frequent use Collection of dust Oxidation of cellulose Lack of aeration Frequent use ANSWER DOWNLOAD EXAMIANS APP
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