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 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 From blue to pink From brown to blue-black ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Carbon monoxide Carbon di-oxide Methane Ethane Carbon monoxide Carbon di-oxide Methane Ethane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The term 'brown air' is used for Acid fumes Photochemical smog Sulphurous smog Industrial smog Acid fumes Photochemical smog Sulphurous smog Industrial smog ANSWER DOWNLOAD EXAMIANS APP
Chemistry For generation of biogas, the materials commonly used are Crop residues Forest residues Animal wastes Aquatic plants Crop residues Forest residues Animal wastes Aquatic plants ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following has least negative electron gain enthalpy S P Cl F S P Cl F ANSWER DOWNLOAD EXAMIANS APP
Chemistry PH value between 6.5-7.5 makes the soil Neutral Basic Acidic None of these Neutral Basic Acidic None of these ANSWER DOWNLOAD EXAMIANS APP
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