Advertisements
Advertisements
प्रश्न
Explain the following:
Lime water turns milky on passing carbon dioxide gas into it.
Advertisements
उत्तर
When carbon dioxide gas is passed through lime water, it turns milky because a white precipitate of calcium carbonate is formed.
Calcium hydroxide + Carbon dioxide → Calcium carbonate + Water
APPEARS IN
संबंधित प्रश्न
Write two methods of preventing the rusting of iron.
State two conditions for the rusting of iron.
Write three methods of preventing rusting of iron.
Answer the following question.
List two properties of alloys.
Give reason.
A wooden article should be polished.
State whether the statement given below is true or false. If false write the correct statement.
Either oxygen or moisture is essential for rusting.
Find the odd one out and give its explanation.
Write scientific reason.
Coins are made from metals and alloys.
Observe the following diagram and give answers.
- Name this method of prevention of corrosion.
- For prevention of which metal this method is used?
- What is used as anode in this method?
A man painted his main gate made up of iron, to
- prevent it from rusting.
- protect it from sun.
- make it look beautiful.
- make it dust free.
Which of the above statement(s) is/are correct?
