- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
What is Indicator and Litmus Solution?
Indicators are substances that change colour when they are added to acidic or alkaline solutions. Litmus, phenolphthalein, and methyl orange are all indicators that are commonly used in the laboratory.
Litmus is a water-soluble mixture of different dyes extracted from lichens. It is often absorbed onto filter paper to produce one of the oldest forms of pH indicator and called Litmus paper.
It used to test materials for acidity and basicity.
Blue litmus paper turns red under acid conditions, and red litmus paper turns blue under alkaline conditions.
Neutral litmus paper is purple in colour.
- Related Articles
- On adding a few drops of universal indicator solution to three unknown colourless solutions P, Q, and R taken separately in three test-tubes shown in the diagrams, a student observed the changes in colour as green in solution P, red solution Q and violet in solution R.The decreasing order of the pH of the three solution is :(1) P > Q > R(2) R > P > Q(3) Q > P > R (4) R > Q > P"
- Which one of the following solutions would you use to test the pH of a given sample?(1)blue litmus solution(2)red litmus solution(3) universal indicator solution(4)mixture of red and blue litmus solution
- Difference between ++*p, *p++ and *++p in c++
- Difference between ++*p, *p++ and *++p in C
- Given that \( \frac{4 p+9 q}{p}=\frac{5 q}{p-q} \) and \( p \) and \( q \) are both positive. The value of $\frac{p}{q}$ is
- What is an equation $4=5(p-2)-4=5(p-2)$
- If p is a prime number and q is a positive integer such that $p + q = 1696$. If p and q are co prime numbers and their LCM is 21879, then find p and q.
- Simplify and verify the result for $p=1$.$4 p^{3} \times 3 p^{4} \times( -p^{5})$"\n
- Acids turn ____________ litmus solution __________.
- Find the value(s) of \( p \) for the following pair of equations:\( -x+p y=1 \) and \( p x-y=1 \),if the pair of equations has no solution.
- Name the source from which litmus solution is obtained. What is the use of this solution?
- Difference between const char* p, char * const p, and const char * const p in C
- Prove that $\sqrt{p} + \sqrt{q}$ is irrational, where $p$ and $q$ are primes.
- Subtract \( 4 p^{2} q-3 p q+5 p q^{2}-8 p+7 q-10 \) from \( 18-3 p-11 q+5 p q-2 p q^{2}+5 p^{2} q \).
- Name the source from which the litmus solution is obtained. What is the use of this solution?
Advertisements