मराठी

State one characteristic of the chemical reaction which takes place when dilute sulphuric acid is added to barium chloride solution.

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प्रश्न

State one characteristic of the chemical reaction which takes place when dilute sulphuric acid is added to barium chloride solution.

अति संक्षिप्त उत्तर
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उत्तर

When dilute sulphuric acid is added to barium chloride solution, it forms white precipitates of barium sulphate. Hence, this reaction is characterised by formation of precipitate.

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पाठ 1: Chemical Reactions and Equations - Exercise 1 [पृष्ठ ३१]

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लखमीर सिंह Chemistry Part 2 [English] Class 10
पाठ 1 Chemical Reactions and Equations
Exercise 1 | Q 34. (b) (iii) | पृष्ठ ३१

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संबंधित प्रश्‍न

Translate the following statement into chemical equation and then balance it.

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Translate the following statement into a chemical equation and then balance it.

Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.


Complete and balance the following equation:

\[\ce{Ca(OH)2 + {..........} -> CaCO3 + H2O}\]


Balance the following chemical equation:

\[\ce{NH3 -> N2 + H2}\]


Balance the following chemical equation:

\[\ce{C + CO2 -> CO}\]


Aluminium burns in chlorine to form aluminium chloride (AlCl3). Write a balanced chemical equation for this reaction.


State one characteristic of the chemical reaction which takes place when dilute hydrochloric acid is added to sodium carbonate.


Give one example of an exothermic reaction.


You are given the solution of lead nitrate. In order to obtain a yellow precipitate you should mix with it a solution of ______.


The metal M reacts vigorously with water to form a solution S and a gas G. The solution S turns red litmus to blue whereas gas G, which is lighter than air, burns with a pop sound. Metal M has a low melting point and it is used as a coolant in nuclear reactors.

  1. What is metal M?
  2. What is solution S? Is it acidic or alkaline?
  3. What is gas G?
  4. Write a balanced chemical equation for the reaction which takes place when metal M reacts with water.
  5. Is this reaction exothermic or endothermic?

What information do you get from the equation H2+ Cl2  →  2HCl ?


Balance the following equation:

KOH + Cl2 → KCl + KClO + H2O


Write word equation for the following molecular equation:

\[\ce{CaCO3 + 2HCl ->[\triangle] CaCl2 + H2O + CO2 [g]}\]

Word equation:

State which characteristic does [g] in the above reaction indicate. The word equation of:


Representation of the results of a chemical change – is a chemical equation.

For the equation: FeCl3 + 3NH4OH 3NH4Cl + Fe(OH)3 ↓

Answer the following:

Name the reactants and the products in the above equation.


Give word equation for the following chemical reaction and give the names of the product formed.

ZnCO3 → ZnO + CO2


Give word equation for the following chemical reaction and give the names of the product formed.

NH3 + HCl→ NH4Cl


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6NaOH + 3Cl2 → 6NaCl + NaClO3 + 3H2O


Balance the following chemical equation.

  1. Na + O2 → Na2O3
  2. Ca + N2 → Ca3N2
  3. N2 + H2 →NH3
  4. CaCO3 +HCl → CaCl2 + CO2 +H2O
  5. Pb(NO3)2 → PbO + NO2 + O2

Three beakers labelled as A, B and C each containing 25 mL of water were taken. A small amount of NaOH, anhydrous CuSO4 and NaCl were added to the beakers A, B and C respectively. It was observed that there was an increase in the temperature of the solutions contained in beakers A and B, whereas in case of beaker C, the temperature of the solution falls. Which one of the following statement(s) is(are) correct?

  1.  In beakers A and B, exothermic process has occurred.
  2. In beakers A and B, endothermic process has occurred.
  3. In beaker C exothermic process has occurred.
  4.  In beaker C endothermic process has occurred.

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