Advertisements
Advertisements
प्रश्न
You are provided with the following chemicals:
NaOH, Na2CO3, H2O, Zn(OH)2, CO2, HCI, Fe, H2SO4, CI2, Zn.
Using the suitable chemicals from the given list only, state briefly how you would prepare sodium zincate.
Advertisements
उत्तर
Sodium zincate can be prepared by treating NaOH with Zn(OH)2.
\[\ce{2NaOH + Zn(OH)2 -> \underset{Sodium zincate}{Na2ZnO2}+2H2O}\]
APPEARS IN
संबंधित प्रश्न
Name the procedure used to prepare a sodium salt such as sodium sulphate.
How is the following salt prepared:
Lead carbonate from lead nitrate.
Give equation to prepare the following as directed
MgCO3 from MgCl2
From the list of the substances given, name the substances which you would use to prepare each of the following salts:
List of substances: Copper, lead, sodium, zinc, copper oxide, lead carbonate, sodium carbonate solution, dilute hydrochloric acid, dilute nitric acid and dilute sulphuric acid.
Salts: (a) zinc sulphate (b) copper sulphate (c) sodium sulphate (d) lead sulphate.
Write the balanced equation for the preparation of the following compounds, starting from iron and using other substance: Iron (II) chloride
Write equation for the laboratory preparation of the following salt, using sulphuric acid: Iron (II) sulphate from the iron.
Choosing the correct words given in brackets, complete the sentence given below: Sodium sulphate from sodium carbonate.
Write the equations for the reaction to prepare lead sulphate from lead carbonate.
Choose the most appropriate answer from
(SO2, SiO2, Al2O3, CO, MgO, Na2O)
An oxide which when dissolved in water form acid.
Select the word/s given which are required to correctly complete the blanks.
When solution M and O are mixed together, the products will be ______ and ______.
