Which Indian state has witnessed cases of Covidengue, a combination of both COVID-19 and Dengue? O [A] Kerala O [B] Telangana O [C] Madhya Pradesh O [D] Gujarat
If it has two bonds and two lone pairs, as in water, it will have a formal charge of zero. If it has one bond and three lone pairs, as in hydroxide ion, it will have a formal charge of-1. If it has three bonds and one lone pair, as in hydronium ion, it will have a formal charge of +1.