Class 10 CHE -ACIDS& BASE Here the Quick 5 Questions test for Assessment 1. From which plant is litmus paper or litmus solution obtained? Lichen Hibiscus Roses Moss None 2. The blue-green colour of the solution is due to the formation of copper(II) chloride in the reaction' is an example of which kind of chemical reaction? Reaction of non-metallic oxides with base Reaction of metallic oxides with bases Reaction of non-metallic oxides with acids Reaction of metallic oxides with acids None 3. Metals generally react with dilute acids to produce hydrogen gas . Which one of the following metals does not react with dilute hydrochloric acid? magnesium aluminium iron copper None 4. Tooth decay can be cured by a toothpaste by a reaction called as : 5. Phenolpthalein is type of indicator. Time's up 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.