Search questions
Choose which content to search, then combine terms with AND or OR.
Class 10 · Science · Medium
→Between two acidic solutions of pH 3 and pH 5, which one is more acidic?
Class 10 · Science · Hard
→If the concentration of hydrogen ions in an acidic solution increases ten times, what is the general effect on pH?
Class 10 · Science · Medium
→Dry hydrogen chloride gas does not turn blue litmus red, but it does so after dissolving in water. What does this prove?
Class 10 · Science · Medium
→Why is calcium oxide called a basic oxide?
Class 10 · Science · Medium
→Why is carbon dioxide considered both a non-metal oxide and an acidic oxide?
Class 10 · Science · Medium
→Which salt gives a nearly neutral solution because it is formed from a strong acid and a strong base?
Class 10 · Science · Medium
→Which salt is likely to show acidic nature in aqueous solution?
Class 10 · Science · Medium
→Which salt is most likely to show basic nature in aqueous solution?
Class 10 · Science · Medium
→Which of the following salts can turn blue litmus red in its aqueous solution?
Class 10 · Science · Medium
→The main difference between gypsum and plaster of Paris is related to what?
Class 10 · Science · Easy
→White anhydrous copper sulphate turns blue when water is added. What does this show?
Class 10 · Science · Medium
→Why does soap produce less lather with hard water while washing clothes?
Class 10 · Science · Easy
→Which is the correct matching for washing soda and baking soda?
Class 10 · Science · Medium
→Why can sodium hydrogen carbonate be used as an antacid?
Class 10 · Science · Medium
→What is the main role of the edible acid present in baking powder?
Class 10 · Science · Medium
→Why can the quality of bleaching powder decrease if it is kept exposed to air for a long time?
Class 10 · Science · Easy
→Why is the chlor-alkali process given this name?
Class 10 · Science · Medium
→In the electrolysis of brine in the chlor-alkali process, what is the correct order of gases formed at anode and cathode?
Class 10 · Science · Medium
→In which condition will aquatic organisms in a river or lake be at greater risk from acid rain?
Class 10 · Science · Medium
→