Class 10 CHE -ACIDS& BASE Here the Quick 5 Questions test for Assessment 1. 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 2. Why does baking soda and vinegar react with each other? To decompose each other None of the above To displace each other To neutralize each other 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? copper iron magnesium aluminium None 4. On adding phenolphthalein indicator to a colourless solution, no change is observed. What is the nature of this solution? Basic Either basic or neutral Either acidic or neutral Either acidic or basic None 5. 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 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.
