Q. Which Gas is Produced When Dilute Hydrochloric Acid is Added to a Reactive Metal? When you add dilute hydrochloric acid (HCl) to a reactive metal, it produces hydrogen gas. Imagine it like adding lemon juice to baking soda – it fizzes and bubbles! The gas produced is hydrogen, which is very light and can […]
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Q2. Write Equations for the Reactions (i) Iron with Steam (ii) Calcium and Water (i) Iron with Steam When iron reacts with steam, it forms iron oxide and hydrogen gas. It’s like iron getting a steam bath and coming out with a new look! 3Fe+4H2O→Fe3O4+4H2 (ii) Calcium and Water When calcium reacts with water, it
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Q. Why is Sodium Kept Immersed in Kerosene Oil? Sodium is like a very naughty kid who loves to react with everything around it, especially water and air. If you leave sodium out in the open, it will react with the moisture in the air and can even catch fire! To keep it safe and
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Q:You have two solutions, A and B. The pH of solution A is 6 and pH of solution B is 8. Which solution has more hydrogen ion concentration? Which of this is acidic and which one is basic? Solution A (pH 6) has a higher hydrogen ion concentration and is acidic. Solution B (pH 8)
Q. How is the concentration of hydroxide ions (OH–) affected when excess base is dissolved in a solution of sodium hydroxide? When you add more base to a sodium hydroxide solution, the concentration of hydroxide ions (OH–) increases. This makes the solution more basic because there are more OH– ions available to react with H+
Q. Why do HCl, HNO3, etc., show acidic characters in aqueous solutions while solutions of compounds like alcohol and glucose do not show acidic character? HCl and HNO3 are acids that release H+ ions in water, making the solution acidic. Alcohol and glucose don’t release H+ ions, so they don’t show acidic properties. Acids have
Q. Why does an aqueous solution of an acid conduct electricity? Acidic solutions conduct electricity because they have free-moving H+ ions. These ions can carry electric charge, making the solution conductive. Water alone can’t conduct electricity, but adding acid makes it conductive due to the free-moving H+ ions. Explore Entire Collection of Texcellency Books Download
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Why does dry HCl gas not change the colour of the dry litmus paper
Why does dry HCl gas not change the colour of the dry litmus paper? Read More »
Q. How is the concentration of hydronium ions (H3O+) affected when a solution of an acid is diluted? When you dilute an acid with water, the concentration of hydronium ions (H3O+) decreases. This is because the same number of H3O+ ions is spread out in a larger volume of water, making the solution less acidic.
Q. While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid? When you’re diluting an acid, you should always add acid to water because it’s safer. If you add water to acid, it can react very quickly and splash out, which could be