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Class 10 · Science · Medium
→Metal oxides form salt and water when they react with acids. What nature does this demonstrate?
Class 10 · Science · Medium
→Why is the conductivity of ethanoic acid lower than that of hydrochloric acid at the same concentration?
Class 10 · Science · Medium
→Which acid ionises more completely in water?
Class 10 · Science · Medium
→Which ion does hydrochloric acid mainly produce when dissolved in water?
Class 10 · Science · Medium
→Which ion does sodium hydroxide mainly produce when dissolved in water?
Class 10 · Science · Medium
→Which ions combine to form water during neutralisation?
Class 10 · Science · Easy
→What main substances are formed in the reaction between an acid and a base?
Class 10 · Science · Medium
→Why can excess carbon dioxide remove the milkiness of lime water?
Class 10 · Science · Medium
→Milkiness of lime water occurs due to formation of which substance?
Class 10 · Science · Medium
→The gas released by reaction of an acid with carbonate turns lime water milky. Which gas is it?
Class 10 · Science · Medium
→How is the gas formed by reaction of an acid with an active metal identified?
Class 10 · Science · Easy
→What nature is indicated by violet colour in universal indicator?
Class 10 · Science · Easy
→What nature is indicated by red colour in universal indicator?
Class 10 · Science · Easy
→What colour does universal indicator show in a neutral solution?
Class 10 · Science · Easy
→What is the usual pH of a neutral solution?
Class 10 · Science · Easy
→A solution with pH 9 will be considered what type of solution?
Class 10 · Science · Easy
→A solution with pH 5 will be considered what type of solution?
Class 10 · Science · Medium
→In a solution red litmus turns blue and turmeric becomes reddish-brown. What is the nature of the solution?
Class 10 · Science · Medium
→If blue litmus turns red in a colourless solution, which ion is likely to be in excess in that solution?
Class 10 · Science · Medium
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