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What is thermit process?

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प्रश्न

What is thermit process?

अति संक्षिप्त उत्तर
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उत्तर

Reaction in which iron oxide reacts with aluminium to produce molten iron. It is an exothermic process.

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2019-2020 (March) Delhi Set 2

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संबंधित प्रश्‍न

Write a complete balanced equation for the following reaction:

\[\ce{Calcium (solid) + Water (liquid) -> Calcium hydroxide (solution) + Hydrogen (gas)}\]


A solution made in water is known as an ______ solution and indicated by the symbol ______.


Name the various types of chemical reactions.


Complete the following equation:

CH2 + H5OH `("Hot Conc." H_2SO_4)/`>


Balance the following equation:

PbO + NH3 → Pb + H2O + N2

 


Write the balanced chemical equation of the following reaction. potassium bicarbonate + sulphuric acid → potassium sulphate + carbon dioxide + water


(a) Give only one suitable chemical test to identify the following gases.

  1. Ammonia
  2. Sulphur dioxide
  3. Hydrogen Chloride
  4. Chlorine
  5. Carbon Dioxide
  6. Oxygen
  7. Hydrogen

(b) Select a basic gas mentioned in Q.1 (a). How is the basic nature suspected?

(c)Select acidic gases from the gases mentioned in Q.1 (a). How is the acidic nature suspected?

(d) State the gas responsible for bleaching action.

(e)Which gas turn blue cobalt chloride paper light pink?

 


Write word equation for the following chemical reaction given below. Also state the observation seen in the case.

\[\ce{ZnCo3->[\triangle] ZnO + CO2}\]


Balance the following simple equation:

Al   +   N2  →  AlN 


A student took a small amount of copper oxide in a conical flask and added dilute hydrochloric acid to it with constant stirring. He observed a change in colour of the solution. 

  1. Write the name of the compound formed and its colour.
  2. Write a balanced chemical equation for the reaction involved.

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