Advertisements
Advertisements
प्रश्न
Correct the following statement:
Hydrogen is separated from CO by passing the mixture through caustic potash solution.
Advertisements
उत्तर
Hydrogen is separated from CO2 by passing the mixture through caustic potash solution.
APPEARS IN
संबंधित प्रश्न
Name the following:
Two metals which give hydrogen with cold water.
Multiple Choice Question
The metal which reacts with cold water to produce hydrogen is
Complete the following word equation:
Sodium hydroxide + zinc → hydrogen + _________
Hydrogen can be prepared with the help of cold water. Give a reaction of hydrogen with:
A monovalent metal
Hydrogen may be prepared in the laboratory by the action of a metal on an acid.
Which of the acids dilute sulphuric, concentrated sulphuric, dilute nitric acid and concentrated nitric acid would you choose? Explain why you would not use the acids you reject.
Starting from hydrogen gas how would you obtain a basic gas.
Select the correct options for the following statement:
The metallic compound formed when a metal above aluminium in the activity series reacts with steam.
Select the correct options for the following statement:
The acid _____ is not Used in the laboratory preparation of hydrogen, using zinc and an acid.
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Calcium - Ca + H2O → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Zinc - Zn + 2HCl → ______ + _______ [g]
