English
Maharashtra State BoardSSC (English Medium) 10th Standard

Methyl Orange is Used as an Indicator. It Shows Colour Change in Acid, Base and Neutral Substance. Tabulate Your Result as Follows - Science and Technology 1

Advertisements
Advertisements

Question

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

Solution

Indicator Colour change Inference
Methyl Orange No change Neutral substance
Red Acid
Yellow Base
shaalaa.com
  Is there an error in this question or solution?
2013-2014 (March)

APPEARS IN

RELATED QUESTIONS

Why should a magnesium ribbon be cleaned before it is burnt in air?


What is a balanced chemical equation? Why should a chemical equation be balanced?


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

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


Find the odd man out:

Turmeric, Methyl Orange, Rose petals, Beetroot.


Correct and balance the following equation:
Ca   +   H2O     CaOH   +   H


Write the balanced equations for the following reaction, and add the state symbols:
Magnesium carbonate reacts with hydrochloric acid to produce magnesium chloride, carbon dioxide and water.


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

Sodium hydroxide reacts with sulphuric acid to produce sodium sulphate and water.


Ammonia reacts with oxygen to form nitrogen and water. Write a balanced chemical equation for this reaction. Add the state symbols for all the reactants and products.


State the various characteristics of chemical reactions.


What do you understand by endothermic reactions?


Is Electrolysis of water an endothermic reaction or 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:
(a) potassium chloride
(b) potassium nitride
(c) potassium sulphide
(d) potassium iodide


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 word equation for the following skeletal equation:

\[\ce{Ca + O2 → CaO}\]


Balance the following chemical equation :

FeS + HCl →  FeCl2 + H2S


Balance the following chemical equation :

Na20 + H20  →  NaOH


Write your observation for the following chemical reaction and name the product formed :

When water is added to quick lime?


Balance the following equation :

 Fe + O2 → Fe3 O4


Balance the following equation :

Pb3O4 → PbO + O2


While performing the experiment with raisins to determine the percentage of water absorbed by them, a student made following measurements:

Mass of water in the beaker = 40 g

Mass of raisins before soaking = 5 g

Mass of raisins after soaking for 2 hours = 8 g

Mass of water left in the beaker after the experiment = 35 g

The percentage of water absorbed by raisins is:


Raisins are wiped off gently before final weighing with the help of


What is the limitation of the reaction given in question 2?


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

Magnesium + Sulphuric acid → Magnesium sulphate + Hydrogen


Balance the following equation:

PbS + O2 → PbO + SO2


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

0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate moles of acid required.


Grills of doors and windows are always painted before they are used.


When a potassium iodide solution is added to a solution of lead (II) nitrate in a test tube, a precipitate is formed.

What is the colour of this precipitate? Name the compound precipitated.


When a potassium iodide solution is added to a solution of lead (II) nitrate in a test tube, a precipitate is formed.

Write the balanced chemical equation for this reaction.


Balance the following simple equation:

Al   +   O2  →  Al2O3 


Balance the following simple equation:

SO2   +   O2  ⇌  SO3 


Balance the following simple equation:

K  +   H2O   →   KOH   +   H2 


Balance the following simple equation:

NaOH  +  Cl2  →  NaCl  +   NaClO  +  H2


Write a balanced equation for the following word equation:

Potassium bicarbonate → Potassium carbonate + Water + Carbon dioxide 


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

2H2O + 2Cl2 → 2HCl + O2


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


Balance the given chemical reaction as per the instructions below.

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

Make a list of the elements in the chemical equation.


Balance the given chemical reaction as per the instructions below.

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

Write the number of atoms of various elements in the reactants and products.


Give the characteristic tests for the following gases :

  1. CO2
  2. SO2
  3. O2
  4. H2

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×