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 blue to pink From brown to blue-black From pink to blue-green From brown to orange-red From blue to pink From brown to blue-black From pink to blue-green From brown to orange-red ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following in automobile exhaust can cause cancer? Carbon monoxide Lead Oxides of nitrogen Polyclinic hydrocarbons Carbon monoxide Lead Oxides of nitrogen Polyclinic hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Dry powder fire extinguishers contain Sand and potassium carbonate Sand and sodium bicarbonate Sand Sand and sodium carbonate Sand and potassium carbonate Sand and sodium bicarbonate Sand Sand and sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium is produced by the electrolysis of Aqueous brine solution Its cyanide complex Molten sodium carbonate Molten sodium chloride Aqueous brine solution Its cyanide complex Molten sodium carbonate Molten sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ? Eutrophication Alkalinity Hardness Acidity Eutrophication Alkalinity Hardness Acidity ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called Eutrophication Green house effect None of these Smog Eutrophication Green house effect None of these Smog ANSWER DOWNLOAD EXAMIANS APP
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