+91-9828-747676
Question
Consider the following statements :
(1) Pseudo-hardness is due to presence of sodium ion in water
(2) When alkalinity  ≥Total hardness, Carbonate hardness in mg/l = Total hardness in mg/l
(3) Bicarbonate alkalinity = Total alkalinity – (Carbonate alkalinity – Hydroxide alkalinity)
(4) Hydroxide alkalinity = Carbonate alkalinity + Bicarbonate alkalinity
Which of the following statements related to testing of water for municipal use are correctly applicable?
A.
1 and 3 only
B.
2 and 3 only
C.
1 and 2 only
D.
1, 2 and 3 only
Answer ( Option C)

1 and 2 only

Solution

If Non-carbonate hardness is absent in water
• Total hardness = Minimum of
(carbonate hardness, alkalinity)
Thus, Alkalinity > Total hardness
Then Total hardness = Carbonate hardness.
→Pseduo hardness is due to pressure of Na+ (sodium ion) in water.

Popular Online Test Serie

Preparing students for success in a changing World.

RPSC-AE

RPSC-AE
RSSB-JE

RSSB-JE
SSC-JE

SSC-JE
RRB-JE/SSE

RRB-JE/SSE
RSEB-JE/AE

RSEB-JE/AE
DRDO CEPTAM -10 (STA-B)

DRDO CEPTAM -10 (STA-B)

ISRO Scientist Engineer

ISRO Scientist Engineer
View All

Online Classes

We care about our students

View More


banner
banner
banner
banner
banner
Online Classes
Register Now
Test Series
Register Now
Job Notification
Job Notification

Daily Quiz

RPSC-AE, RSMSSB-JE, SSC-JE, RRB-JE, PSU's