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Carbon dioxide can be collected in an open gas jar, why?
Describe the laboratory preparation of carbon dioxide with a labelled diagram.
Study the given figure and answer the following questions:
- Which gas is being collected in the gas jar?
- Write a balanced chemical reaction for preparation of this gas.
- Which litmus paper is used to identify the gas?
- Why is this gas collected in the gas jar kept straight upright?
Write any three properties of carbon dioxide gas.
Write any four uses of carbon dioxide gas.
What happens in the following processes? Write with a balanced chemical reaction.
- Carbon dioxide is passed through lime water for some time.
- Carbon dioxide is passed through lime water for a long time.
- A burning magnesium is inserted into the jar full of carbon dioxide gas.
What is upward displacement of air?
Write down the molecular formula and molecular weight of carbon dioxide.
Where is carbon dioxide found in nature?
What happens when carbon dioxide gas is cooled at -78$^o$C?
Write any two physical properties of carbon dioxide gas.
Write any two chemical properties of carbon dioxide gas.
Name any two chemicals which are required to prepare carbon dioxide gas in laboratory.
What is dry ice?
What will happen when lime water reacts with carbon dioxide? Write a balanced chemical equation.
A colorless and odorless water-soluble gas reacts with ammonia at high temperatures to form a nitrogen fertilizer, i.e., urea. Suggest two other applications of the same gas. Also, draw a well-labelled diagram to demonstrate the laboratory preparation of that gas.
A student used powder of calcium carbonate rather than marble pieces for the laboratory preparation of CO$\rm _2$ gas.
- Write a balanced chemical equation for the chemical reaction mentioned above.
- Why did he/she use powder of marble instead of marble chips?
What happens when carbon dioxide reacts with water? Also, write balanced chemical equation.
Why is carbon dioxide gas considered as acidic gas?
Clarify the cause of selecting dil. HCl instead of dil. H$_2$SO$_4$ during laboratory preparation of carbon dioxide. What tests do you need to perform before entering into well to prevent from the suffocation?
What products are formed on heating of limestone to a high temperature using coal?
Which of the following statements is true?
Which compounds are formed when carbon dioxide gas is passed through lime water for some time?