Permanent hardness of water may be removed by the addition of___________?

Related Mcqs:

1. Permanent hardness of water can be removed by adding __________?

   A. Chlorine
   B. Washing soda
   C. Bleaching powder
   D. None of these

   Submitted by: Fahad Mehsud

2. Permanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ?

   A. Zeolites
   B. Sulphonides
   C. Lime
   D. Nitrates

   Submitted by: Rashid Mehmood

3. Permanent hardness of water is due to the presence of __________?

   A. Sodium bicarbonate
   B. Calcium sulfate
   C. Calcium bicarbonate
   D. None of these

   Submitted by: Mirza Musawer Jamil

4. Medium sized kidney stones are removed by__________?

   A. Dialysis
   B. Lithotripsy
   C. Excretion
   D. Laser

   Submitted by: Rashid Mehmood

5. An adult have permanent teeth?

   A. 30
   B. 40
   C. 50
   D. 32

   Submitted by: Muhammad Asif Khajjak

6. German Silver is an alloy of___________?

   A. Zn + Ni
   B. Cu + Zn
   C. Cu + Ni
   D. Cu + Sn
   E. None of these

7. UV light falls in the category of___________?

   A. Ionizing Radiations
   B. Non Ionizing Radiation
   C. Visible light
   D. None

8. Entomology Is the Study of___________?

   A. worms
   B. insects
   C. Animals
   D. All of these

   Submitted by: Raza Talpur

9. Lock Jaw i.e. difficulty in opening the mouth, is a symptom of___________?

   A. Chlorea
   B. Plague
   C. Diphtheira
   D. Tetanus

   Submitted by: Farhan Rana

10. Farad is the unit of___________?

    A. inductance
    B. voltage
    C. capacitance
    D. None of these

    Submitted by: Asad malik