In order to study the properties of HCl acid, a student add dilute HCl to a test tube containing a compound X. As a result A colourless and odourless gas is evolved, which turns the lime water milky. What could be the compound X ?Name the gas formed. What would happen on passing the gas in excess of lime water?
Asked by pdcavita | 28th Dec, 2017, 08:29: PM
Expert Answer:
Dilute HCl on reaction with metallic carbonates liberates carbon dioxide gas,
which is colourless, odourless gas which turns lime water milky.
The compound 'X' is calcium carbonate.
The gas formed is carbon dioxide.
When carbon dioxide is passed through lime water, it turns lime water milky due to formation of CaCO3.
But if excess of CO2 is passed through lime water then water soluble calcium bicarbonate will formed and solution remains clear.

Answered by Varsha | 29th Dec, 2017, 11:13: AM
Related Videos
- Among the following given substances, which ones when added to sulphuric acid solution can increase its pH to 7? A- Antacid B- Water C- Baking soda D- Glass cleaner
- Solve it
- How to understand the water is realising h+ions or oh ions when base or acid is added to water By seeing the water with naked eyes
- what is the solvay process?
- Do indicators have formula?Otherwise if a indicator(dye) is added to a compound(acid,base,salt solutions),will the formula of compound change?
- Which acid is strongest
- chemical properties of acid & base
- Carbonic acid is a mineral acid then why we considered it weak acid ??
- Explain the effect on concentration of hydronium ions and pH of an acidic solution on dilution
- name the sodium compound which is used for softening hard water
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Sign Up
Verify mobile number
Enter the OTP sent to your number
Change