Chemistry The process of removing calcium and magnesium from hard water is known as Sedimentation Water softening Filtration Flocculation Sedimentation Water softening Filtration Flocculation 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 pink to blue-green From brown to blue-black From blue to pink From brown to orange-red From pink to blue-green From brown to blue-black From blue to pink From brown to orange-red ANSWER DOWNLOAD EXAMIANS APP
Chemistry Two elements which can form a large number of compounds are Carbon and Oxygen Carbon and Nitrogen Carbon and Sulphur Carbon and Hydrogen Carbon and Oxygen Carbon and Nitrogen Carbon and Sulphur Carbon and Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal that is usually extracted from sea water is K Mg Ca Na K Mg Ca Na ANSWER DOWNLOAD EXAMIANS APP
Chemistry The next higher homologue of C6H14 is C7H12 C6H12 C7H14 C7H16 C7H12 C6H12 C7H14 C7H16 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hardest allotrope of carbon is Lamp black Graphite Diamond Coke Lamp black Graphite Diamond Coke ANSWER DOWNLOAD EXAMIANS APP
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