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 Nitric acid does not change blue litmus to red Sodium hydroxide turns red litmus blue None 2. When you add a few drops of acetic acid to a test-tube containing sodium bicarbonate powder, which one of the following is your observation? No reaction takes place Colour of solution changes A brown coloured gas is released with brisk effervescence A colourless and odourless gas is released with brisk effervescence None 3. Which of the following salts does not contain water of crystallisation? Blue vitriol Washing soda Baking soda Gypsum None 4. When an acid reacts with a metal carbonate or metal hydrogen carbonate, it gives the corresponding salt, gas and product. Name the gas and product? Hydrogen, Salt Carbon dioxide, Salt All of the above Carbon dioxide, Water None 5. Phenolphthalein is a synthetic indicator and its color in acidic and basic solutions, respectively are: Colorless and pink red and blue pink and colorless blue and red None 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.
