Chemistry The maximum number of covalent formed by nitrogen is 2 3 4 1 2 3 4 1 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who is known as the 'father of modern chemistry' John Dalton Robert Boyle Antoine Lavoisier Democritus John Dalton Robert Boyle Antoine Lavoisier Democritus ANSWER DOWNLOAD EXAMIANS APP
Chemistry The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of discovery of elements atomic structure metallurgy periodic table of contents discovery of elements atomic structure metallurgy periodic table of contents ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphuric acid is Tribasic Monobasic Tetrabasic Dibasic Tribasic Monobasic Tetrabasic Dibasic ANSWER DOWNLOAD EXAMIANS APP
Chemistry An important green-house gas other than methane being produced from the agricultural fields is Ammonia Arsine Nitrous oxide Sulphur dioxide Ammonia Arsine Nitrous oxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is usually a mixture of : Calcium aluminate and calcium ferrate Calcium silicate and calcium aluminate Calcium silicate and calcium ferrate Lime stone and silicon dioxide Calcium aluminate and calcium ferrate Calcium silicate and calcium aluminate Calcium silicate and calcium ferrate Lime stone and silicon dioxide ANSWER DOWNLOAD EXAMIANS APP