Advertisements
Advertisements
Question
Explain the following:
Ca(OH)2 is preferred over NaOH in the preparation of ammonia.
Solution
Calcium hydroxide is preferred as it is cheap and not deliquescent like
NaOH or KOH.
APPEARS IN
RELATED QUESTIONS
Draw a labelled diagram and give balanced equation for the lab. Preparation of ammonia. Also state physical properties of ammonia.
Choose the correct word or phrase from the options to complete the following sentence and write balanced equation for the same.
Ammonium chloride is a soluble salt prepared by ______.
Explain the following:
Ammonia solution is used in the laboratory to identify metalions.
Laboratory preparation of ammonia from aammonia chloride
How is ammonia gas prepared in laboratory starting from NH4Cl? State the conditions and balanced equation for the preparation.
Name a simple method you would employ to prepare ammonium salts in your laboratory.
A substance 'A' was heated with slaked lime and a gas 'B' with the pungent smell was obtained. Name the substances A and B and give a balanced equation.
Give reasons:
Conc. \[\ce{H2SO4}\] is a good drying agent, yet it is not used to dry \[\ce{NH3}\].
Give reasons:
In the lab. preparation of ammonia calcium hydroxide is used in excess.
Ammonia is manufactured by Haber Process.
Under what conditions do the reactants combine to form ammonia? Give a balanced equation for the reaction.
Ammonia is manufactured by Haber Process.
State whether the formation of ammonia is promoted by the use of high pressure or low pressure?
Give a balanced equation:
Ammonium hydroxide is added to ferrous sulphate solution.
The following question pertains to the laboratory preparation of Ammonia gas from Magnesium nitride:
Write a balanced chemical equation for its preparation.
The following question pertains to the laboratory preparation of Ammonia gas from Magnesium nitride:
Why is the method seldom used?
The following question pertains to the laboratory preparation of Ammonia gas from Magnesium nitride:
How do you identify the gas that formed?
Rewrite the following statement by adding the correct word, as shown in the example:
|
Example: Given Statement: Ammonia changes moist red litmus to blue. Correct Statement: Aqueous ammonia changes moist red litmus to blue. |
Ammonia reacts with chlorine to give ammonium chloride and nitrogen.
