Chemistry Which among the following coal contains 90 per cent of carbon? Peat Anthracite Bitumen Lignite Peat Anthracite Bitumen Lignite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Activated Charcoal is used to remove colouring matter from pure substances by Reduction Oxidation Adsorption Bleaching Reduction Oxidation Adsorption Bleaching ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following fibres catches fire least ? Terricot Rayon Nylon Cotton Terricot Rayon Nylon Cotton ANSWER DOWNLOAD EXAMIANS APP
Chemistry The maximum number of covalent formed by nitrogen is 4 3 2 1 4 3 2 1 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The example of oligosaccharide is Sucrose Glucose Ribose Cellulose Sucrose Glucose Ribose Cellulose ANSWER DOWNLOAD EXAMIANS APP
Chemistry Why is water not suitable for putting out a petrol fire ? Water, being heavy, slips below petrol which thus remains in contact with air and burns Petrol is too inflammable to be extinguished by water The heat required for combustion of petrol is very low The oxygen content of water is isolated by petrol and thus it helps in burning Water, being heavy, slips below petrol which thus remains in contact with air and burns Petrol is too inflammable to be extinguished by water The heat required for combustion of petrol is very low The oxygen content of water is isolated by petrol and thus it helps in burning ANSWER DOWNLOAD EXAMIANS APP
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