Advertisements
Advertisements
प्रश्न
When _______________ is passed through fresh lime water, it turns milky.
विकल्प
H2
CO2
CO
SO2
Advertisements
उत्तर
When CO2 is passed through fresh lime water, it turns milky.
APPEARS IN
संबंधित प्रश्न
How is the concentration of hydronium ions (H3O+) affected when the solution of an acid is diluted?
A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains ______.
Write a word equation and then a balanced equation for the reaction taking place when:
Dilute hydrochloric acid reacts with magnesium ribbon.
Name one natural source of the following acid:
Lactic acid
Complete and balance the following chemical equation:
\[\ce{NaHCO3_{(s)} + HCl_{(aq)} ->}\]
Complete and balance the following chemical equation:
\[\ce{NaOH_{(aq)} + HCl_{(aq)} ->}\]
What happens when an acid reacts with a base? Explain by taking the example of hydrochloric acid and sodium hydroxide. Give equation of the chemical reaction which takes place. What is the special name of such a reaction?
Compounds such as alcohol and glucose also contain hydrogen but are not categorised as acids. Describe an activity to prove it.
A solution reacts with marble chips to produce a gas which turns lime water milky. The solution contains ______.
Acids turn blue litmus paper to ______.
If a few drops of a concentrated acid accidentally spills over the hand of a student, what should be done?
Which of the following substance will not give carbon dioxide on treatment with dilute acid?
Which of the following are present in a dilute aqueous solution of hydrochloric acid?
What are strong and weak acids? In the following list of acids, separate strong acids from weak acids.
Hydrochloric acid, citric acid, acetic acid, nitric acid, formic acid, sulphuric acid.
In the following schematic diagram for the preparation of hydrogen gas as shown in the figure, what would happen if following changes are made?
- In place of zinc granules, same amount of zinc dust is taken in the test tube
- Instead of dilute sulphuric acid, dilute hydrochloric acid is taken
- In place of zinc, copper turnings are taken
- Sodium hydroxide is taken in place of dilute sulphuric acid and the tube is heated.
Consider the following salt:
YCl
What would be the pH of the solution if, in YCl, Y is sodium? Give a reason for your answer.
Consider the following salt:
NH4X
If in salt NH4X, X is nitrate, then its solution will give what colour with a universal indicator? Why?
Consider the following salt:
\[\ce{ZCO3}\]
What would be the change in colour in blue litmus if \[\ce{ZCO3}\] is added to it and Z is potassium?
The metal that will not produce hydrogen gas when reacted with dilute acids.
