Question:
(ii) Write chemical reaction for manufacture of bleaching powder and its two applications.
(ii) Write chemical reaction for manufacture of bleaching powder and its two applications.
Show Hint
Bleaching powder is effective as a disinfectant and bleaching agent due to its strong oxidizing properties.
Updated On: Sep 6, 2025
Hide Solution
Verified By Collegedunia
Solution and Explanation
Bleaching powder is produced by the reaction of chlorine gas with dry slaked lime (calcium hydroxide). The chemical reaction for the manufacture of bleaching powder is: \[ Ca(OH)_2 + Cl_2 \rightarrow Ca(OCl)_2 + H_2O \] This reaction produces calcium oxychloride (bleaching powder) along with water. Applications of Bleaching Powder:
1. Disinfection of Drinking Water:
Bleaching powder is commonly used to disinfect drinking water by killing harmful bacteria and other pathogens. It helps purify water, making it safe for consumption. \[ Ca(OCl)_2 + H_2O \rightarrow Ca(OH)_2 + Cl_2 \] 2. Bleaching Agent in Textile and Paper Industry:
Bleaching powder is used as a bleaching agent in the textile and paper industries. It helps in the removal of color from fabrics and paper, making them white and clean.
Was this answer helpful?
0
0
Top Questions on Acids, Bases And Salts
- 100 ml of 10 M HCl is mixed with 75 ml of 10 M Na$_2$CO$_3$. The resulting solution would be –
- UP Board XII - 2025
- Chemistry
- Acids, Bases And Salts
- The correct order of increasing acid strength is
- UP Board XII - 2025
- Chemistry
- Acids, Bases And Salts
- You have three aqueous solutions A, B and C as given below:
A - Potassium nitrate
B - Ammonium chloride
C - Sodium carbonate
The ascending order of the pH of these solutions is:- CBSE Class X - 2025
- Science
- Acids, Bases And Salts
- The acid present in nettle leaves is:
- CBSE Compartment X - 2025
- Science
- Acids, Bases And Salts
- A few drops of turmeric solution are added to a colorless liquid. If the liquid turns red in color, the liquid could be:
- CBSE Compartment X - 2025
- Science
- Acids, Bases And Salts
View More Questions
Questions Asked in UP Board exam
Draw a memory drawing of any one of the following by pencil. The drawing should not be less than 15 cm:
\begin{enumerate}[(i)] \item Two Guavas with leaves \item Brinjal \item Two Tomatoes \end{enumerate} Keep in view the following points in drawing: \begin{enumerate}[(i)] \item Beauty of lines \hfill 06 marks \item Resemblance of figures \hfill 04 marks \end{enumerate}
- UP Board - 2025
- Memory Drawing
Draw a memory drawing of any one of the following by pencil. The drawing should not be less than 15 cm:
\begin{enumerate}[(i)] \item Copy and pen \item Kite \item Open book \end{enumerate} Keep in view the following points in drawing: \begin{enumerate}[(i)] \item Beauty of lines \hfill 06 marks \item Resemblance of figures \hfill 04 marks \end{enumerate}
- UP Board - 2025
- Memory Drawing
- Paint in a rectangle of \(20 \times 16\) cm a unitary design suitable for the bedsheet based on Indian flowers and buds on the given drawing sheet which consists of attractive colour combination and best colour planning. Use at least three best colour compositions in design. Keep the following points in your mind in design: \begin{enumerate}[(a)] \item Originality of unit \hfill 10 marks \item Rhythmic lines \hfill 05 marks \item Best colour combination \hfill 10 marks \item General effect and attraction \hfill 10 marks \end{enumerate}
- UP Board - 2025
- Decorative Design
- (Natural Landscape Painting)
Prepare a landscape painting in a rectangle of $20\,\text{cm} \times 25\,\text{cm}$ in any medium of colour (water colour or pastel colour) on the given drawing sheet.
In your painting, show a morning village scene with some small and large trees behind the huts, the rising sun behind the trees, and some birds flying in the sky. Human figures are mandatory.
Pay attention to the following points in the painting:
(a) Correct construction and perspective \hfill 10 Marks
(b) Composition \hfill 05 Marks
(c) Selection of harmonious colours and their use \hfill 10 Marks
(d) Attraction and General effect \hfill 05 Marks- UP Board - 2025
- Drawing
- What is the sum of all the internal angles of a square?
- UP Board - 2025
- Angle Sum of Polygons
View More Questions