Advertisements
Advertisements
प्रश्न
Using dilute sulphuric acid how would you differentiate between:
Copper and magnesium
How would you identify the gaseous products evolved.
Advertisements
उत्तर
Action of dil. H2SO4 on
Copper — has no action
Magnesium — produces H2 burns with blue flame with pop-sound.
APPEARS IN
संबंधित प्रश्न
Write a balanced equation for the following:
Iron reacts with dil. HCl
Hydrogen can be prepared with the metal zinc by using:
acid
Give an equation.
Choose the correct option:
Hydrogen is evolved by the action of cold dil. HNO3 on
Which metal is preferred for collecting hydrogen from steam? Write the balanced equation for the case.
Hydrogen is obtained by displacement from:
- dilute sulphuric acid
- dilute hydrochloric acid
Write equations using zinc and iron.
Why does copper not show similar behavior?
Which metal gives hydrogen with all of the following: water, acids, alkalis?
Choose terms from the options given in brackets to complete this sentence.
Sodium ………………. reacts smoothly with cold water.
(metal, amalgam, in the molten state)
Correct the following statement:
Conc. H2SO4 reacts with zinc to liberate hydrogen.
Give a chemical test to distinguish between the following gases:
Hydrogen chloride and hydrogen sulphide
Name the following.
A metal below iron but above copper in the activity series of metals which has no reaction with water.
