हिंदी

Name the acid-base indicator extracted from lichen.

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प्रश्न

Name the acid-base indicator extracted from lichen.

एक शब्द/वाक्यांश उत्तर
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उत्तर

Litmus solution

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अध्याय 2: Acids, Bases and Salts - Exercise 1 [पृष्ठ ८७]

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लखमीर सिंग Chemistry Part 2 [English] Class 10
अध्याय 2 Acids, Bases and Salts
Exercise 1 | Q 16. (b) | पृष्ठ ८७

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संबंधित प्रश्न

Tooth decay is caused by the presence of a base.


How will you test for the presence of this gas?


What is meant by strong acids?


The indicator which produces a pink colour in an alkaline solution is ______.


When a piece of limestone reacts with dilute HCl, a gas X is produced. When gas X is passed through lime water then a white precipitate Y is formed. On passing excess of gas X, the white precipitate dissolves forming a soluble compound Z.

  1. What are X, Y and Z?
  2. Write equations for the reactions which take place:
    1. When limestone reacts with dilute HCl.
    2. When gas X reacts with lime water to form white precipitate Y.
    3. When excess of gas X dissolves white precipitate Y to form a soluble compound Z.

What happens to the H+ ions, of the solution, when an acid is neutralised?


What happens during a bee sting? What is its remedy?


What happens during a wasp sting? What is its remedy?


Give the names and formulae of two strong bases.


What happens when bases react with non-metal oxides? Explain with the help of an example. What does this reaction tell us about the nature of non-metal oxides?


The acid produced naturally in our stomach is ______.


 State one observation for each of the following  :
 A small piece of zinc is added to dilute hydrochloric acid 


The label on the bottle of chemical is spoiled. How will you find whether the chemical is acidic or not? 


Define an acid.


Give the name and formula of two : Volatile acids


The preparation of Lead sulphate from Lead carbonate is a two-step process. (Lead sulphate cannot be prepared by adding dilute Sulphuric acid to Lead carbonate.)

Write the equation for the reaction that will take place when this first step is carried out.


Acids are ________ in taste.


In acidic solutions blue litmus changes into ______ colour.


Which of the following set of substances contain acids?


Which is the strongest acid in the following?


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