Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water Manganese None of these Calcium Magnesium Manganese None of these Calcium Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is biodegradable ? Aluminium D.T. Plastic Paper Aluminium D.T. Plastic Paper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pair of compounds used as anaesthetic in medicines : Nitrogen dioxide, ether Chloroform, Nitrogen dioxide Nitrous oxide, Chloroform Ether, Ammonia Nitrogen dioxide, ether Chloroform, Nitrogen dioxide Nitrous oxide, Chloroform Ether, Ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bakelite is a co-polymer of Phenol and Benzaldehyde Cinnaldehyde Acetaldehyde Formaldehyde Benzaldehyde Cinnaldehyde Acetaldehyde Formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Chemistry A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? From brown to orange-red From brown to blue-black From pink to blue-green From blue to pink From brown to orange-red From brown to blue-black From pink to blue-green From blue to pink ANSWER DOWNLOAD EXAMIANS APP
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