हिंदी

What are reactants? Explain with the help of example.

Advertisements
Advertisements

प्रश्न

What are reactants? Explain with the help of example.

लघु उत्तरीय
Advertisements

उत्तर

  1. The substances taking part in chemical reaction are called reactants.
  2. E.g. Formation of carbon dioxide gas by combustion of coal in air is a chemical reaction. In this reaction, coal (carbon) and oxygen (from air) are the reactants while carbon dioxide is the product.
shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Chemical reactions and equations - Solve the following Questions [पृष्ठ २७]

APPEARS IN

एससीईआरटी महाराष्ट्र Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
अध्याय 3 Chemical reactions and equations
Solve the following Questions | Q 2 (i) | पृष्ठ २७

संबंधित प्रश्न

Balance the following chemical equation.

\[\ce{BaCl2 + H2SO4 -> BaSO4 + HCl}\]


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

 Hydrogen gas combines with nitrogen to form ammonia


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

Hydrogen sulphide gas burns in the air to give water and sulphur dioxide.


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

Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.


State whether the following statement is true or false:

A chemical equation can be balanced easily by altering the formula of a reactant or product.


Balance the following equation:

\[\ce{NH3 + CuO -> Cu + N2 + H2O}\]


Chemical equations are balanced to satisfy the law of ______.


Write the balanced equation for the following reaction, and add the state symbol:

Magnesium carbonate reacts with hydrochloric acid to produce magnesium chloride, carbon dioxide and water.


Write a balanced chemical equation for the process of photosynthesis giving the physical states of all the substances involved and the conditions of the reaction.


State the various characteristics of chemical reactions.


What is a chemical equation?


Balance the following chemical equation :

H2 + O2   →  H2O


In electrolysis of water, why is the volume of gas collected over one electrode double that of gas collected over the other electrode?


Write down what you understood from the following chemical reaction.

AgNO3(aq) + NaCI(aq) → AgCI ↓ + NaNO3(aq)


Balance the following equation:

 Fe + H2O → Fe3O4 + H2

 


Balance the following equation:

 H2O + Cl2 → HCl + O2


Balance the following equation:

 HNO3 + H2S → NO2 + H2O + S


Write the balanced chemical equation of the following reaction.

aluminium + sodium hydroxide + water → sodium meta aluminate + hydrogen


Write the balanced chemical equation of the following reaction.

potassium dichromate + sulphuric acid → potassium sulphate + chromium sulphate + water + oxygen.


Write the balanced chemical equation of the following reaction.

sulphur + nitric acid→ sulphuric acid  + nitrogen dioxide + water.


Choose the correct alternative and rewrite the following sentence.

Which of the following is not required to find the pH of a given solution? 


Answer the following question:
How do acids and bases react with each other? What is the name of the process? What product is obtained from these reactions?


Write word equation for the following molecular equation:

CuCo3 → CuO + CO2 [g]

Word equation:

State the characteristics or indications occurring in the above reaction.


Write word equation for the following molecular equation:

\[\ce{N2 + 3H2 ⇌[Fe - 450°C][200 atoms] 2NH3 + \triangle}\]

Word equation:
State why [+ Δ] indication is seen after NH3.
State what 200 atmospheres – indicates.
State the function of Fe in the above reaction.


Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.

Electrical energy


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

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

Answer the following:

Is the equation given above a balanced equation. Give reasons.


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

ZnCO3 → ZnO + CO2


An element X is trivalent. Write the balanced equation for the combustion of X in oxygen.


Balance the following simple equation:

H2   +   Cl2  →  HCl


Balance the following simple equation:

\[\ce{N2 + H2 <=> NH3}\]


Balance the following simple equation:

NaHCO3  +  H2SO4  →  Na2SO4  +  H2O  +  CO2 


Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.

CaC2 + N2 → 2CaCN2 + C


Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.

3CuO + NH3 → 3Cu + 3H2O + N2


Balance the given chemical reaction as per the instructions below.

\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]

Write names of reactants and products of chemical reaction.


The chemical equation Na2SO4(aq) + BaCl2(aq) → BaSO4(s)↓ + 2NaCl(aq) represents which of the following types of reaction?


The following reaction is an example of a `4"NH"_3("g") + "SO"_2 -> 4"NO"("g") + 6"H"_2"O"("g")`

  1. displacement reaction
  2. combination reaction
  3.  redox reaction
  4. neutralisation reaction

Which of the following is the correct observation of the reaction shown in the above set up?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×