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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Write Chemical Equation for the Event. A Reaction Was Brought About Between Ferric Oxide and Aluminium. - Science and Technology 1

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प्रश्न

Write the chemical equation for the event.

A reaction was brought about between ferric oxide and aluminum.

टीपा लिहा

उत्तर

Aluminium is more reactive than iron. Aluminium metal replaces iron from ferric oxide to form aluminium oxide and iron
Chemical Equation:  \[2Al + F e_2 O_3 \to A l_2 O_3 + 2Fe\]

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Metallurgy - Exercises [पृष्ठ १०९]

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बालभारती Science and Technology 1 [English] 10 Standard SSC Maharashtra State Board
पाठ 8 Metallurgy
Exercises | Q 9.3 | पृष्ठ १०९

संबंधित प्रश्‍न

What do you observe when ferrous sulphate solution is added to an aqueous solution of sodium hydroxide.


Fill in the blank

When a piece of copper is added to silver nitrate solution, it turns ............in colour.


How will you obtain Magnesium oxide from magnesium.

Also give balanced equations for the reactions


What do you observe when Magnesium ribbon is burnt in oxygen.


What is meant by the metal reactivity series ? State its importance, (any two points).


Write chemical equation for the event.
Aluminium came in contact with air.


Write chemical equation for the event.

Iron filings are dropped in aqueous solution of copper sulphate.


Select the correct answer for the statement given below:

A neutral oxide which does not react with an acid or a base to give salt and water.


Complete the statement by filling in the blank with the correct word:

The metal which reacts with steam and the reaction is reversible is ________.


Classify the following metals based on their reactivity.
Cu, Zn, Ca, Mg, Fe, Na, Li, Hg

More reactive Moderately reactive Less reactive
     
     

Explain the following reaction with the balanced equation.

Reaction of aluminium with oxygen


Which of the following is the correct arrangement of the given metals in ascending order of their reactivity?

Zinc, Iron, Magnesium, Sodium


Which among the following statements is incorrect for magnesium metal?


Which among the following alloys contain mercury as one of its constituents?


Compound X and aluminium are used to join railway tracks.

  1. Identify the compound X
  2. Name the reaction
  3. Write down its reaction.

An element A reacts with water to form a compound B which is used in white washing. The compound B on heating forms an oxide C which on treatment with water gives back B. Identify A, B and C and give the reactions involved.


A solution of CuSO4 was kept in an iron pot. After few days the iron pot was found to have a number of holes in it. Explain the reason in terms of reactivity. Write the equation of the reaction involved.


Of the three metals X, Y and Z. X reacts with cold water, Y with hot water and Z with steam only. Identify X, Y and Z and also arrange them in order of increasing reactivity.


Three metal samples of magnesium, aluminium and iron were taken and rubbed with sandpaper. These samples were then put separately in test tubes containing dilute hydrochloric acid. Thermometers were also suspended in each test tube so that their bulbs dipped in the acid. The rate of formation of bubbles was observed. The above activity was repeated with dilute nitric acid and the observations were recorded.

Answer the following questions:

(i) When the activity was done with dilute hydrochloric acid, then in which one of the test tubes was the rate of formation of bubbles the fastest and the thermometer showed the highest temperature?

(ii) Which metal did not react with dilute hydrochloric acid? Give reason.

(iii) Why is hydrogen gas not evolved when a metal reacts with dilute nitric acid? Name the ultimate products formed in the reaction.

OR

Name the type of reaction on the basis of which the reactivity of metals is decided. You have two metals X and Y. How would you decide which is more reactive than the other?


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