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- Indicators: Natural indicator, synthetic indicators, universal indicator
- Acids and Bases in the Laboratory
- Acids and Bases React with Metals
- Metal Carbonates and Metal Hydrogencarbonates React with Acids
- Reaction of Metallic Oxides with Acids
- Reaction of a Non-metallic Oxide with Base
- Hydrogencarbonates React with Acids
- Acids and Bases React with each other
Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.
How is the concentration of hydroxide ions (OH−) affected when excess base is dissolved in a solution of sodium hydroxide?
10 mL of a solution of NaOH is found to be completely neutralised by 8 mL of a given solution of HCl. If we take 20 mL of the same solution of NaOH, the amount of HCl solution (the same solution as before) required to neutralise it will be
(a) 4 mL
(c) 12 mL
(d) 16 mL
Equal lengths of magnesium ribbons are taken in test tubes A and B. Hydrochloric acid (HCl) is added to test tube A, while acetic acid (CH3COOH) is added to test tube B. In which test tube will the fizzing occur more vigorously and why?
A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains
Why do HCl, HNO3, etc., show acidic characters in aqueous solutions while solutions of compounds like alcohol and glucose do not show acidic character?
While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid?
What do we observe on pouring acetic acid on red and blue litmus papers?
(A) Red litmus remains red and blue litmus turns red.
(B) Red litmus turns blue and blue litmus remains blue.
(C) Red litmus turns blue and blue litmus turns red.
(D) Red litmus becomes colourless and blue litmus remains blue.
Write word equations and then balanced equations for the reaction taking place when − dilute hydrochloric acid reacts with magnesium ribbon.
Write word equations and then balanced equations for the reaction taking place when dilute sulphuric acid reacts with zinc granules
|Column A||Column B|
When phenolphthalein is added to NaOH, the colour of the solution will become _________.
Write word equations and then balanced equations for the reaction taking place when dilute sulphuric acid reacts with aluminium powder