Class 10 – sci- Chemical reaction s Here is a Quick test with Five questions for Assessments: 1. Which two gases are released on heating lead nitrate? NO,O2 NO2,O2 N2O,O2 SO2,O2 None 2. What are the coefficients of the correctly balanced equations? ----Fe2O3 + ----CO → ----Fe + ---CO2 0,2,2,3 1,2,2,2 2,6,4,3 1,3,2,3 None 3. Sodium and chlorine are reacted, and as a result, sodium chloride is formed, which is also called table salt. What option gives the reactants and products of the reaction? Reactants – sodium and table salt; products – chlorine Reactants – tables salt; products – sodium and chlorine Reactants – sodium; products – chlorine Reactants – sodium and chlorine; products – sodium chloride None 4. Precipitation reactions produce insoluble 5. is the process in which metals are eaten up gradually by the action of air, moisture or a chemical on their surface. Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.