Class 10 – sci- Chemical reaction s Here is a Quick test with Five questions for Assessments: 1. Precipitation reactions produce insoluble 2. Which one of the following will be required to identify the gas evolved when diluted HCl reacts with zinc metal? Lime water Blue litmus solution Red litmus solution A burning splinter None 3. Magnesium ribbon is rubbed before burning because it has a coating of basic magnesium carbonate basic magnesium oxide basic magnesium sulphide basic magnesium chloride None 4. Some crystals of copper sulphate were dissolved in water. The colour of the solution obtained would be Blue Red Green Brown None 5. The addition of oxygen to a substance is called whereas removal of oxygen is called 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.
