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प्रश्न
Carbon dioxide and sulphur dioxide gas can be distinguished by using ______.
विकल्प
moist blue litmus paper
lime water
acidified potassium dichromate paper
none of the above
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उत्तर
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संबंधित प्रश्न
Distinguish between the given pair of compounds using the test given within bracket:
A lead salt and a zinc salt (using excess ammonium hydroxide)
What kind of salt prepared by direct combination. Write an equation for the reaction that takes place in preparing the salt you have named.
How is the following salt prepared:
Lead carbonate from lead nitrate.
How is the following salt prepared:
Sodium nitrate from sodium hydroxide.
How is the following salt prepared:
Copper (II) sulphate from copper (II) oxide?
Choosing only substances from the list given in the box below, write equations for the reactions which you would use in the laboratory to obtain:
(i) Sodium sulphate
(ii) Copper sulphate
(iii) Iron (II) sulphate
(iv) Zinc carbonate
| Dilute sulphuric acid |
Copper, Iron, |
Copper carbonate, Sodium carbonate |
Write the equation for the following reaction:
Magnesium sulphate solution is mixed with barium chloride solution.
Give the equation for the preparation of the following salt from the starting material given.
Copper sulphate from copper (II) oxide
From the list given below, select the word(s) required to correctly complete blanks (i) to (v) in the following passage. The words from the list are to be used only once. Write the answers as (a) (i), (ii) (iii) and so on. Do not copy the passage.
A solution M turns blue litmus red, so it must contain _______ ions; another, solution O turns red litmus blue and hence, must contain ______ ions.
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 sulphate.
