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प्रश्न
Name an indicator which is red in acid solution but turns blue in basic solution.
उत्तर
Red litmus paper is red in an acid solution and turns blue in a basic solution.
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संबंधित प्रश्न
What effect does the concentration of H+ (aq) ions have on the nature of the solution?
Sodium hydroxide turns blue litmus red.
What colours do the following indicators turn when added to an acid (such as hydrochloric acid)?
litmus
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Onion and vanilla extract are..........................indicators.
Fill in the following blank with suitable words:
The more alkaline a solution, the............... the pH.
Name two common antacids.
Fresh milk has a pH of 6. When milk changes into curd, the pH value will:
(a) become 7
(b) become less than 6
(c) become more than 7
(d) remain unchanged
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Magnesium, Carbon, Sulphur, Hydrogen, Copper
The salt whose aqueous solution will turn blue litmus to red is:
(a) ammonium sulphate
(b) sodium acetate
(c) sodium chloride
(d) potassium carbonate
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