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

Methyl Orange is Used as an Indicator. It Shows Colour Change in Acid, Base and Neutral Substance. Tabulate Your Result as Follows

Advertisements
Advertisements

प्रश्न

Methyl orange is used as an indicator. It shows colour change in acid, base and neutral substance. Tabulate your result as follows:

Indicator Colour change Inference
Methyl Orange No change ......................
.................... Acid
Yellow .......................
Advertisements

उत्तर

Indicator Colour change Inference
Methyl Orange No change Neutral substance
Red Acid
Yellow Base
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2013-2014 (March)

APPEARS IN

संबंधित प्रश्‍न

Balance the following chemical equation.

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


Balance the following chemical equation.

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


Write the balanced chemical equation for the following reaction.

\[\ce{Aluminium + Copper chloride -> Aluminium chloride + Copper}\]


Write the balanced chemical equation for the following reaction.

\[\ce{Calcium hydroxide + Carbon dioxide → Calcium carbonate + Water}\]


Balance the following equation:

\[\ce{Na + O2 -> Na2O}\]


Chemical equations are balanced to satisfy the law of ______.


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


Balance the following chemical equation:

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


Aluminium hydroxide reacts with sulphuric acid to form aluminium sulphate and water. Write a balanced equation for this reaction.


Balance the following chemical equation:

\[\ce{MnO2 + HCl -> MnCl2 + Cl2 + H2O}\]


With the help of an appropriate example, justify that some of the chemical reactions are determined by a change in colour.

Give a chemical equation for the reaction involved in the above case. 


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


State one characteristic of the chemical reaction which takes place when wax is burned in the form of a candle.


One of the following is an exothermic reaction. This is:


Express the following facts in the form of a balanced chemical equation:

“When a strip of copper metal is placed in a solution of silver nitrate, metallic silver is precipitated and a solution containing copper nitrate is formed”.


Write your observations and name the product when

Iron nails are added to an aqueous solution of copper sulphate.


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

Aluminium + Chlorine → Aluminium chloride.


What is a chemical equation? Why it is necessary to balance it?


Balance the following equation:

Ca + N2 → Ca3N2


Balance the following equation:

 HNO3 + H2S → NO2 + H2O + S


Balance the following equation:

P + HNO3 → NO2 + H2O + H3PO4


Write the balanced chemical equations of the following reactions.

chlorine + sulphur dioxide + water →  sulphuric acid + hydrogen chloride


Write the balanced chemical equation of the following reaction.

sodium chloride + manganese dioxide + sulphuric acid → sodium hydrogen sulphate  + manganese sulphate + water + chlorine.


\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]

0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate moles of chlorine gas formed.


Write the name and molecular formula of a carbon compound having its name suffixed with "-ol" and having two carbon atoms in its molecule. With the help of a chemical equation indicate what happens when this compound is heated with excess conc. H2SO4.


Write word equation for the following molecular equation:

Na2SO3 + 2HCl [dil.] → 2NaCl + H2O + SO2 [g] 


Write word equation for the following molecular equation:

AgN03 + HCI → HNO3 + AgCl ↓

Word equation:

State whether AgCl is soluble or insoluble in HN03.


Write word equation for the following molecular equation:

\[\ce{CuSO4 + 2NaOH -> Na2SO4 + Cu(OH)2↓}\]

Word equation:

State the colour of the products.


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.

NH3 + HCl ⇌ NH4Cl 


Name the following:

Two non-metal which react explosively when brought in close contact.


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

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


What is meant by ‘reactants’ and ‘products’ in a chemical equation?


Balance the following simple equation:

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


Write a balanced equation for the following word equation:

Aluminium + Oxygen → Aluminium oxide 


Writing a chemical reaction in brief by using chemical formulae is called as _______.


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 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

Three beakers labelled as A, B and C each containing 25 mL of water were taken. A small amount of NaOH, anhydrous CuSOand 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.

What is a product in a chemical equation?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×