S Block Elements Question 178
Question: Which of the following statements is false
[BHU 2005]
Options:
A) CaOCl2 gives OH-, Cl- and OCl- in aqueous solution
B) Diamond and graphite are allotrops of carbon
C) Bleaching action of Cl2 in moist condition is not permanent
D) Calomel is Hg2Cl2
Show Answer
Answer:
Correct Answer: C
Solution:
Bleaching action of Cl2 in moist condition is permanent. $ Cl_2+H_2O\to HCl+HClO $
$ \frac{HClO\to HCl+O}{Cl_2+H_2O\to 2HCl+O} $ Coloured matter + nascent oxygen ® colourless matter
BETA
