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 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 From brown to orange-red ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element required for solar energy conversion ? Ultra pure carbon Beryllium Tantalum Silicon Ultra pure carbon Beryllium Tantalum Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a commercial source of energy? Firewood Petroleum Coal Natural Gas Firewood Petroleum Coal Natural Gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen in water is commonly found in the form of Nitric oxide Nitrate Nitrous oxide Nitrite Nitric oxide Nitrate Nitrous oxide Nitrite ANSWER DOWNLOAD EXAMIANS APP
Chemistry A substance which readily forms colloidal solution in contact with water is called Hydrophobic colloid Hydrophilic colloid Extrinsic colloid Associated colloid Hydrophobic colloid Hydrophilic colloid Extrinsic colloid Associated colloid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is ozone depleting pesticide ? Benzene Ethylene ozonide Methyl bromide D.T. Benzene Ethylene ozonide Methyl bromide D.T. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS