Class 10 CHE -ACIDS& BASE Here the Quick 5 Questions test for Assessment 1. Which of the following statement is correct? Nitric acid turns red litmus blue Sodium hydroxide turns blue litmus red Sodium hydroxide turns red litmus blue Nitric acid does not change blue litmus to red 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 acids Reaction of non-metallic oxides with base Reaction of metallic oxides with acids Reaction of metallic oxides with bases None 3. A student was mixing an acid and a base in the laboratory. He observed that the test tube became hot after mixing. What was the reason for this increase in temperature? Action of the base on glass produces heat. Reaction between the acid and the base produces heat. Salt formed after reaction acts on glass to produce heat. Action of the acid on glass produces heat None 4. What is used with acid in fire extinguishers to produce carbon dioxide gas? 5. Tooth decay can be cured by a toothpaste by a reaction called as : 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.
