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

Write Down What You Understood from the Following Chemical Reaction. - Science and Technology 1

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प्रश्न

Write down what you understood from the following chemical reaction.

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

थोडक्यात उत्तर
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उत्तर

i. AgNO3 and NaCl are reactants and AgCl and NaNO3 are products.
ii. Reactants and the product NaNO3 are in aqueous form.
iii. Product AgCl is formed in the form of precipitate.

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2018-2019 (March) Balbharati Model Question Paper Set 1

संबंधित प्रश्‍न

Balance the chemical equation.

\[\ce{HNO3 +Ca(OH)2 -> Ca(NO3)2 + H2O}\]


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

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


Write the balanced chemical equation for the following reaction.

\[\ce{Barium chloride + Potassium sulphate → Barium sulphate + Potassium chloride}\]


Find the odd man out:

Turmeric, Methyl Orange, Rose petals, Beetroot.


Complete and balance the following equation:

CA (OH)2  +  .............          CaCO3    +   H2O


What is a chemical equation? Explain with the help of an example.


When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are products.


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


Substitute formulae for names and balance the following equation:
Calcium carbonate reacts with hydrochloric acid to produce calcium chloride, water and carbon dioxide gas.


Give one example of an exothermic reaction.


When the solution of substance X is added to a solution of potassium iodide, then a yellow solid separates out from the solution.
(a) What do you think substance X is likely to be?
(b) Name the substance which the yellow solid consists of.
(c) Which characteristic of chemical reaction is illustrated by this example?
(d) Write a balanced chemical equation for the reaction which takes place. Mention the physical states of all the reactant and products involved in the chemical equation.


Name the various types of chemical reactions.


Write word equation for the following skeletal equation:

\[\ce{KNO3 -> KNO2 + O2}\]


Write symbolic representation for the following word equation and balance them :

Calcium carbonate → Calcium oxide + Carbon dioxide.


Write the chemical equation for the following word equation and balance them.

Nitrogen + Oxygen → Nitrogen monoxide


Balance the following equation:

C + H2SO4 → CO2 + H2O + SO2


Balance the following equation:

NaHCO3 → Na2CO3 + H2O + CO2


What information does the following chemical equation convey?

Zn + H2SO4 → ZnSO4+ H2


Complete the following blank in the equation as indicated.

\[\ce{CaH2_{(s)} + 2H2O_{( aq)}-> Ca(OH)2_{(s)} + 2H2_{(g)}}\]

Moles: 1 mole + ______ `→` ______ + ______


Answer the following question.
What is observed when 2 mL of dilute hydrochloric acid is added to 1 g of sodium carbonate taken in a clean and dry test tube? Write a chemical equation for the reaction involved.


Write word equation for the following molecular equation:

CuCo3 → CuO + CO2 [g]

Word equation:

State the characteristics or indications occurring in the above reaction.


In certain reaction a change of state is observed i.e. solid to liquid, liquid to gas etc. – State the change of state of the products – to give the respective reactant.

\[\ce{C +2S -> CS2}\]


In certain reaction a change of state is observed i.e. solid to liquid, liquid to gas etc. – State the change of state of the products – to give the respective reactant.

2H2 + O2 → 2H2O


In certain reaction an insoluble solid called precipitate is formed. State the colour and name of the precipitate formed in the following reaction involving addition of:

Iron [II] sulphate to sodium hydroxide.


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

Pressure


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.


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:

KBr  +  Cl2  → KCl  +  Br2


Write a balanced equation for the following word equation:

Potassium nitrate → Potassium nitrite + Oxygen


Write a balanced equation for the following word equation:

Lead dioxide [lead (IV) oxide] → Lead monoxide + Oxygen 


Write a balanced equation for the following word equation:

Aluminium + Oxygen → Aluminium oxide 


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

Cl2 + 2H2O + SO2 → 4HCl + H2SO4


Match the columns.

  Reactants Products Types of chemical reaction
1. MgH2 Mg + H2 Endothermic
2. 2H2S + SO2 3S + 2H2O Oxidation
3. CaO + H2O Ca(OH)2 + heat Exothermic
        Redox

Reema took 5ml of Lead Nitrate solution in a beaker and added approximately 4ml of Potassium Iodide solution to it. What would she observe?


Which of the following statements about the given reaction are correct?

`3"Fe"("s") + 4"H"_2"O"("g") -> "Fe"_3"O"_4("s") + 4"H"_2("g")`

  1.  Iron metal is getting oxidised
  2. Water is getting reduced
  3. Water is acting as reducing agent
  4.  Water is acting as oxidising agent

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