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
86 views
in Chemistry by (62.9k points)
closed by
Assertion `:` Calgon is used in manufacture of soft water being used for laundry purpose.
Reason `: Ca^(2+)` and `Mg^(2+)` ions present in hard water are rendered ineffective by calgon forming their soluble complexes.

1 Answer

0 votes
by (66.0k points)
selected by
 
Best answer
Correct Answer - a
`2CaSO_(4)+Na_(2)[Na_(4)(PO_(3))_(6)]rarr Na_(2)[Ca_(2)(PO_(3))_(6)]+2Na_(2)SO_(4)`
`2MgSO_(4)+[Na_(2)(PO_(3))_(6)] rarr underset("Complex salts")([Mg_(2)(PO_(3))_(6)]+2Na_(2)SO_(4))`

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

...