Advertisements
Advertisements
प्रश्न
The diagram given below is to prepare iron (III) chloride in the laboratory.
(i) What is substance B?
(ii) What is the purpose of B?
(iii)Why is iron (III) chloride to be stored in a closed container?
(iv) Write the equation for the reaction between iron and chloride ?
Advertisements
उत्तर
(i) Substance B is a dehydrating agent.
(ii) B prevents the entry of moisture inside the apparatus because it absorbs moisture.
(iii) Iron (III) chloride is stored in a closed container because it is a deliquescent compound.
(iv) \[\ce{2Fe + 3CI2->2FeCI3}\]
APPEARS IN
संबंधित प्रश्न
What kind of salt prepared by direct combination. Write an equation for the reaction that takes place in preparing the salt you have named.
The following is a list of methods for the preparation of salts.
A – direct combination of two elements
B – reaction of a dilute acid with a metal.
C – reaction of a dilute acid with an insoluble base.
D – titration of a dilute acid with a solution of soluble base.
E – reaction of two solutions of salts to form a precipitate.
Choose from the above list A to E, the best method of preparing the following salt by giving a suitable equation in the following case:
Anhydrous ferric chloride.
Explain hydronium ion. Write the ionization of sulphuric acid showing the formation of hydronium ion.
State how would you prepare copper (II) oxide from
Copper Carbonate
Give equation to prepare the following as directed
PbCO3 from Pb(NO3)
Give equation to prepare the following as directed
NaHCO3 from Na2CO3
Write the equation for the laboratory preparation of sodium sulphate using dilute sulphuric acid.
State the inference drawn from the following observation:
Salt S is prepared by reacting dilute sulphuric acid with copper oxide Identify S.
Explain why Anhydrous FeCl3 cannot be prepared by heating hydrated iron (III) chloride.
For each of the salt: A, B, C and D, suggest a suitable method of its preparation.
A is a sodium salt.
