मराठी

Give Reason for the Following: Blue Colour of Copper Sulphate Solution is Destroyed When Iron Filings Are Added to It. - Science

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प्रश्न

Give reason for the following:
Blue colour of copper sulphate solution is destroyed when iron filings are added to it.

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उत्तर

When iron fillings are added to copper sulphate solution, iron will displace copper to form iron sulphate. The blue colour of the copper sulphate solution changes to green as iron sulphate is green in colour.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Metals and Non-metals - Exercise 1 [पृष्ठ १३२]

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लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 3 Metals and Non-metals
Exercise 1 | Q 29 | पृष्ठ १३२

संबंधित प्रश्‍न

.................... liberated when acetic acid reacts with sodium metal.
(a) Hydrogen
(b) Chlorine
(c) Oxygen
(d) Nitrogen


A solution of CuSO4 in water is .................... in colour.
(a) Pink
(b) Blue
(c) Colourless
(d) Green


Metal A has electronic configuration (2, 8, 1) and metal B has (2, 8, 8, 2). Which is more reactive? Why? Identify these metals.


Write the electron-dot structures for sodium, oxygen and magnesium.


You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.


Complete and balance the following equation:

Cu (NO3)2 (aq)  +  Zn(s)  →

 


Fill in the following blank with suitable word:

 Magnesium liberates ............... gas on reacting with hot boiling water.


Explain why, metals usually do not liberate hydrogen gas with dilute nitric acid.


Why does aluminium not react with water under ordinary conditions?


Describe the reaction of potassium with water. Write the equation of the reaction involved.


What is the action of water on aluminium ? Write equation of the chemical reaction involved.


Name another metal oxide which behaves like aluminium oxide.


Write the chemical equation of the reaction which takes place when iron reacts with dilute sulphuric acid. What happens when the gas produced is ignited with a burning matchstick?


Write the equation for the reaction of Magnesium with dilute hydrochloric acid.

Name the products formed. Also indicate the physical states of all the substances involved.


Write the equation for the reaction of Aluminium with dilute hydrochloric acid.

Name the products formed. Also indicate the physical states of all the substances involved.


An element X forms two oxides XO and XO2. The oxide XO is neutral but XO2 is acidic in nature. The element X is most likely to be:
(a) sulphur
(b) carbon
(c) calcium
(d) hydrogen


Write the chemical equation of the above process.


An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.


Which of the following property is not responsible for copper to be used as electrical conduction wires?


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