Environmental Chemistry II Water Multiple Choice Questions and Answers 2 pdf eBooks Download

Learn environmental chemistry ii water MCQs, grade 10 chemistry test 2, properties of water multiple choice questions and answers. Properties of water revision test has chemistry worksheets, answer key with choices as 2%, 20%, 0.20% and none of these of multiple choice questions (MCQ) with properties of water quiz as what percentage of fresh water is available to man? for competitive exam prep, viva interview questions. Free chemistry study guide to practice properties of water quiz to attempt multiple choice questions based test.

MCQs on Environmental Chemistry II Water Quiz pdf Download Worksheets 2

MCQ. What percentage of fresh water is available to man?

  1. 20%
  2. 2%
  3. 0.20%
  4. None of these

C

MCQ. What is second step of raw water treatment?

  1. Sedimentation
  2. Coagulation
  3. Filtration
  4. Chlorination

B

MCQ. What is percentage of water from rivers and lakes?

  1. 0.001%
  2. 0.2%
  3. 0.6%
  4. 2.1%

B

MCQ. Permanent hardness of water is caused due to presence of dissolved

  1. Calcium hydrogen carbonates
  2. Magnesium hydrogen carbonates
  3. Both A and B
  4. Sulphates and chlorides of calcium or magnesium

D

MCQ. Step of sewage water treatment in which there is some aeration and organic material is converted to inorganic materials is called

  1. Primary sewage treatment
  2. Secondary sewage treatment
  3. Activated sludge treatment
  4. Chlorination

B