Advertisements
Advertisements
Question
Give a chemical test to distinguish between the following gases:
Hydrogen chloride and hydrogen sulphide
Solution
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.
APPEARS IN
RELATED QUESTIONS
From the knowledge of activity series, name a metal which shows the following properties:
It forms a base which is insoluble in water.
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.
Based on the reactions of water on metals, arrange the following metals in increasing order of reactivity: iron, sodium, magnesium, zinc, calcium
Select the odd one out and justify your answer.
Zn, Fe, Mg, and Na
Select the odd one out and justify your answer.
Fe, Pb, Al and Zn
Helium is preferred to hydrogen for filling balloons because it is:
Which metal gives hydrogen with all of the following: water, acids, alkalis?
State why hydrogen is not prepared in the laboratory by the action of lead with dilute hydrochloric acid.
Name the following.
A metal which cannot be used for the preparation of hydrogen using dilute acids.
Name the following.
The salt formed when aluminium reacts with potassium hydroxide, during the preparation of hydrogen from alkalis.
