Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
660 views
in Chemistry by (95.5k points)
closed by
An inorganic salt when heated with concentrated `H_(2)SO_(4)` evolves a colourless pungent smelling gas but with concentrated `H_(2)SO_(4) " and" MnO_(2)`, evolves a cxoloured pungent smelling gas which bleaches moist litmus paper. The coloured gas is :
A. `NO_(2)`
B. `Cl_(2)`
C. `Br_(2)`
D. `l_(2)`

1 Answer

0 votes
by (94.9k points)
selected by
 
Best answer
Correct Answer - B
`Cl^(-)+H_(2)SO_(4) to HCl uarr ("colourless") HSO_(4^(-))`
`MnO(OH)_(2)+2H_(2)SO_(4)+2Cl^(-) to Mn^(2+) +Cl_(2) uarr ("yellowish green")+2SO_(4)^(2-)+3H_(2)O`
`Cl_(2)+H_(2)O to 2HCl+[O]`
Litmus +[O] `to` colourless oxidised form
`Cl_(2)` is a yellowish green gas which bleaches litmus paper by oxidation.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...