1.How many elements were discovered about 1800? 2.How many elements discovered till now? 3.who proposed octave laws? 4.what substance is found in sour things? 5.what is the taste of basic things? punam kumari 06-10-2017 2 Answers 1 0 TAGS 1Howmanyelementswerediscoveredabout1800 2Howtillnow 3whoproposedoctavelaws 4whatsubstancefoundsourthings 5whatthetastebasicthingsDictionary Comment: Submit See all questions in Meaning in Hindi 9 elements were discovered till 1800 Anshika Gupta 06/10/2017 1 0 Report Answer 2. 118 elements discovered till now Rishav Tomar 06/10/2017 0 0 Report Answer