Question

01:41:41
MCQ (100)
Q6. Residual hardness left in hot Lime-Soda
process is about
(A) 50-60 ppm
(B) 2-3 ppm
(C) 15-30 ppm
(D) 80-90 ppm​

Answer 1

Answer:

Answer: Residual hardness left in hot Lime-Soda process is about 15-30 ppm.

option c is correct

Answer 2

Answer:

Option - (c)15-30ppm

Explanation:

Residual hardness left in hot Lime-Soda

process is about 15-30 ppm.

Residual hardness-

1) The determination of residual water hardness of softened water is simple, fast and accurate.

2) Mostly used in boilerhouse boilers, particularly in steam boilers to check incoming water residual water hardness.

FINAL ANSWER - option-c 15-30ppm

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