Chemistry The element with highest first ionisation energy is Lithium Helium Sodium Hydrogen Lithium Helium Sodium Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Two elements which can form a large number of compounds are Carbon and Sulphur Carbon and Hydrogen Carbon and Nitrogen Carbon and Oxygen Carbon and Sulphur Carbon and Hydrogen Carbon and Nitrogen Carbon and Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Why is water not suitable for putting out a petrol fire ? 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 Water, being heavy, slips below petrol which thus remains in contact with air and burns Petrol is too inflammable to be extinguished by water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pH of human blood is between : 44052 4.5-5 7.5-8 6.5-7 44052 4.5-5 7.5-8 6.5-7 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The polymer used in making plastic crockery is Bakelite Melamine Decron Nylon Bakelite Melamine Decron Nylon ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ is used for making vinegar. Tartaric acid Malic acid Oxalic acid Acetic acid Tartaric acid Malic acid Oxalic acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
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