General Science 7th Class English Medium Online Test With Answers

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General Science 7th Class English Medium Online Test

Sr. # Questions Answers Choice
1 Chemical bond teh forms between metallic and non-metallic atoms. Covalent Ionic Metalic None of these
2 Chemical bond is O2 is. Ionic Covalent Metalic None of these
3 While writing a chemical formula positive ionis written on. Right Left Center All of these
4 Chemical formula of Sulphuric Acid. HCl H2SO4 HNO3 CH3COOH
5 Valency of nitrogen is 1 2 3 4
6 When water molecule gain a proton it form H+ OH- H3O <blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;">H2O</blockquote>
7 Negatively charged atom or grop of atoms is called. Proton Electron Anion Cation
8 Positively charged atom or grouping of atoms is called. Anion Cation Neutron Proton
9 An atm with stable elecrronic configuration can exist. Reacts readily Can not exist Independently Combined form
10 Whcih of the following has double covalent bound. Br2 CO2 HCl N2
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