Advertisements
Advertisements
Question
Give reason for the following:
Molybdenum is used in the manufacture of ammonia.
Advertisements
Solution
Molybdenum increases the efficiency of the catalyst iron used in the manufacture of ammonia.
APPEARS IN
RELATED QUESTIONS
Complete and balance the following chemical equations:
`"H"_2"S"` + `"CI"_2` `→`
Fill in the blank.
Melting of ice is a _______ change.
Write true or false :
When potassium iodide solution is added to lead acetate solution a red precipitate is formed.
Explain the term reactant and product giving examples.
Complete the following table and write your observations.
|
Hydrogen sulphide |
Ammonia |
Sulphur dioxide |
Hydrogen chloride |
|
|
Shake the gas with red litmus solution |
||||
|
Shake the gas with blue litmus solution |
||||
|
Apply a burning splint to a gas |
State the original colour of the following substance and colour of residue obtained after heating.
Ammonium dichromate
Distinguish by heating the following in dry test tubs.
Zinc carbonate, Copper carbonate and lead carbonate.
Give balanced equation for the following conversion affected by heat alone on the substance:
Zinc nitrate to nitrogen dioxide
What kind of a change is associated with decaying of a plants?
Silver metal can displace hydrogen gas from nitric acid.
