Sail E0 Webinar

MCQs

Total Questions : 71 | Page 6 of 8 pages
Question 51. Which of the following is termed as free available chlorine?
  1.    Hypochlorous acid
  2.    Hypochlorite ions
  3.    Molecular chlorine
  4.    Hypochlorous acid, Hypochlorite ions, Molecular chlorine
 Discuss Question
Answer: Option D. -> Hypochlorous acid, Hypochlorite ions, Molecular chlorine
Answer: (d).Hypochlorous acid, Hypochlorite ions, Molecular chlorine
Question 52. When the pH is between 5 and 10, the chlorine in the water acts as ______
  1.    Hypochlorous acid
  2.    Hypochlorite ions
  3.    Molecular chlorine
  4.    Hypochlorous acid hypochlorite ions
 Discuss Question
Answer: Option D. -> Hypochlorous acid hypochlorite ions
Answer: (d).Hypochlorous acid hypochlorite ions
Question 53. At what pH, chlorine in water acts as only hypochlorite ions?
  1.    <5
  2.    >5
  3.    >10
  4.    <3
 Discuss Question
Answer: Option C. -> >10
Answer: (c).>10
Question 54. At what pH, chlorine exists as molecular chlorine?
  1.    3
  2.    5
  3.    <5
  4.    <10
 Discuss Question
Answer: Option C. -> <5
Answer: (c).<5
Question 55. The hypochlorous acid is ______ times effective as hypochorite ions.
  1.    10
  2.    30
  3.    50
  4.    80
 Discuss Question
Answer: Option D. -> 80
Answer: (d).80
Question 56. Chlorine which gets consumed in the oxidation of impurities before disinfection is ______________
  1.    Free chlorine
  2.    Residual chlorine
  3.    Chlorine demand
  4.    Residual demand
 Discuss Question
Answer: Option C. -> Chlorine demand
Answer: (c).Chlorine demand
Question 57. Bleaching powder contains ______ of available chlorine.
  1.    16%
  2.    33.3%
  3.    66.6%
  4.    99.9%
 Discuss Question
Answer: Option B. -> 33.3%
Answer: (b).33.3%
Question 58. The chlorine, which serves as a disinfectant is ___________
  1.    Free chlorine
  2.    Free Residual chlorine
  3.    Chlorine demand
  4.    Residual demand
 Discuss Question
Answer: Option B. -> Free Residual chlorine
Answer: (b).Free Residual chlorine
Question 59. What is the chemical formula of bleaching powder?
  1.    Ca (OCl)₂
  2.    Ca (OCl)
  3.    Ca (OCl)₃
  4.    CaCl₂
 Discuss Question
Answer: Option A. -> Ca (OCl)₂
Answer: (a).Ca (OCl)₂
Question 60. The permissible limit of free residual chlorine is ___________
  1.    0.02ppm
  2.    0.2ppm
  3.    1ppm
  4.    2ppm
 Discuss Question
Answer: Option B. -> 0.2ppm
Answer: (b).0.2ppm

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

DSP Combined 1 Free Revision Test SAIL JO E-0
GPOE / GPA Combined 1 Free Revision Test SAIL JO E-0
BSP Plant Specific Review Test SAIL JO E-0
BSL Combined 1 Free Revision Test SAIL JO E-0
GFM Combined 1 Free Revision Test SAIL JO E-0