Home
Class 11
CHEMISTRY
Polyphosphates are used for softening ag...

Polyphosphates are used for softening agents because they

A

form soluble complexes anionic species

B

precipitate anionic species

C

form soluble complexes with cationic species

D

precipitate cationic species

Text Solution

Verified by Experts

The correct Answer is:
c

Polyphosphates `(` sodium hexametaphosphates, sodium tripolyphosphate or `STPP)` from soluble complexes with `Ca^(+2), Mg^(+2)` is present in hard water.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • HYDROGEN

    A2Z|Exercise Assertion - Reasoning Questions|3 Videos
  • HYDROCARBONS

    A2Z|Exercise Section D - Chapter End Test|30 Videos
  • IONIC EQUILIBIUM

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

Ca is the good reducing agent, because

Halogens are powerful oxidising agents because

Knowledge Check

  • Polyphosphates are used as water softening agents because they

    A
    form soluble complexes with anionic species
    B
    precipitate anionic species
    C
    form soluble complexes with cotionic species
    D
    precipitate cationic species
  • Polyphosphates are used as water softening agents because they

    A
    form soluble complexes with anionic speciews
    B
    precipitate anionic species
    C
    form soluble complexes with cationic species
    D
    precipitate cationic species.
  • Polyphosphates llike sodium hexametaphosphate (calgon) are used as water softening agents because they

    A
    form soluble complexes with anionic species
    B
    precipitate anionic species
    C
    form soluble complexes with cationic species
    D
    precipitate cationic species.
  • Similar Questions

    Explore conceptually related problems

    Alkali metals are good reducing agents because

    Ce ^(4+) is used as oxidising agent because

    Formic acid is reducing agent because

    Alkali metals are strong reducing agents because

    A polysaccharide used as solidyfying agent is