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प्रश्न
Identify the salts P and Q from the observation given below:
On performing the flame test salt P produces a lilac coloured flame and its solution gives a white precipitate with silver nitrate solution. Which is soluble in ammonium hydroxide solution.
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उत्तर
KCl
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संबंधित प्रश्न
Give balanced chemical equations for the action of sulphuric acid on the following:
Sulphur
Give two balanced reactions of the type to show the following property of sulphuric acid:
Oxidising agent
Why is concentrated sulphuric acid kept in air tight bottles?
How will you distinguish between dilute H2SO4 and conc. H2SO4 ?
Choose the current answer from the options given below :
The catalyst used for the oxidation of SO2 to SO3 in contact process is
Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Sodium Sulphate from sodium carbonate.
- Name the catalyst which helps in the conversion of sulphur dioxide to sulphur trioxide in step C.
- In the contact process for the manufacture of sulphuric acid, sulphur trioxide is not converted to sulphuric acid by reacting it with water. Instead a two-step procedure is used. Write the equations for the two steps involved in D.
- What type of substance will liberate sulphur dioxide from sodium sulphite in step E?
- Write the equation for the reaction by which sulphur dioxide is converted to sodium sulphite in step F.
Dilute hydrochloric acid and dilute sulphuric acid are both colourless solutions. How will the addition of barium chloride solution to each help to distinguish between the two?
State two observations when
A few crystals of KNO3 are heated in a hard glass tube
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. |
Sulphuric acid acts as a dehydrating agent.
