Question

16. Explain the solution (using change in pH) to the following problems.
(i) Indigestion
(ii) Tooth decay
(iii) Bee sting
OR
Bleaching powder is a salt used widely. It has many applications
(i) Name the gas used in the manufacture of Bleaching powder
(ii) Write a chemical equation for its manufacture
(ii) Write the uses of Bleaching powder.
17. The position of 5 elements P, Q, R, S & T in the Modern Periodic Table are shown
below.
GROUP 15
GROUP 16
GROUP
Use alphabets to answer the following questions
(a) Identify the most reactive non-metal from the above table
(b) Which is smaller in size between R and S?
(c) Identify the element that will have both valencies as 3 and 5?
(d) Write the formula of the molecule formed between Q and P.
(e) Which among these elements has the least electronegative in Group 179
( Which element has the highest ionization energy) spam or incorrect answers will be sure reported in any case​

Answer 1

Gas used for manufacturing bleaching powder is chlorine

Ca(OH)2 + Cl2 -----> CaOCl2 + H2O

Bleaching powder uses

Cleaning process in wood , linen , cotton industrys

Oxidising agent

Making drinking water germ free

I HOPE MY ANSWER MIGHT BE HELPFULL . IF YOU THINK IT IS HELPFULL , THEN PLS MARK ME AS THE BRAINLIEST ANSWER

Answer 2

Explanation:

gas used for manufacturing bleaching powder is chlorine

Ca(OH)2 + Cl2 -----> CaOCl2 + H2O

bleaching powder uses :

cleaning process in wood , linen , cotton industrys

oxidising agent

making drinking water germ free