मराठी

Give a Chemical Test to Distinguish Between the Following Gases: Hydrogen Chloride and Hydrogen Sulphide

Advertisements
Advertisements

प्रश्न

Give a chemical test to distinguish between the following gases:

Hydrogen chloride and hydrogen sulphide

फरक स्पष्ट करा
Advertisements

उत्तर

Hydrogen chloride [HCl]: Turns silver nitrate sol. into curdy white ppt. This ppt. is soluble in NH4OH but insoluble in dil. HN03 does not show lead acetate paper test.
Hydrogen sulphide [H2S]: Shows no such test, with AgNO3[sol.] Put moist lead acetate paper in H2S gas. It turns silvery black.

shaalaa.com
Application of Activity Series in the Preparation of Hydrogen
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 9: Practical Chemistry - Additional Questions

APPEARS IN

विराफ जे. दलाल Simplified ICSE Chemistry [English] Class 9
पाठ 9 Practical Chemistry
Additional Questions | Q 1.3

संबंधित प्रश्‍न

Hydrogen can be prepared with the metal zinc by using: alkali

Give an equation.


A small piece of calcium metal is put into a small trough containing water. There is effervescence and white turbidity is formed.

What do you observe when a few drops of red litmus solution are added to the turbid solution.


Give reason for the following:

Potassium and sodium are not used for reaction with dilute hydrochloric acid or dilute sulphuric acid in the laboratory preparation of hydrogen. 


Write a balanced equation for the reaction named metal with (i) boiling water (ii) steam.


When hydrogen is passed over a black solid compound A, the products are a 'colorless liquid' and a 'reddish-brown metal B'.

Substance B is divided into two parts each placed in separate test tubes.

Dilute HCl is added to one part of substance B and dilute HNO3 to the other.

  1. Name the substances A and B.
  2. Give two tests for the colourless liquid formed in the experiment.
  3. What happens to substance A when it reacts with hydrogen? Give reasons for your answer.
  4. Write an equation for the reaction between hydrogen and substance A.
  5. Is there any reaction between substance B and dilute hydrochloric acid? Give reasons for your answer.

Give a reason for the following.

Hydrogen is collected by the downward displacement of water and not of air, even though it is lighter than air.


Select the odd one out and justify your answer.

SO2, H2S, NH3, and CO3


Correct the following statement:

Very dilute nitric acid reacts with iron to produce hydrogen.


What do you observe when dilute sulphuric acid is added to Zinc granules.


Name the following.

The salt formed when aluminium reacts with potassium hydroxide, during the preparation of hydrogen from alkalis.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×