The salinity of sea water is determined by the amount of common salt (Sodium Chloride) in __________ of sea water.

Related Mcqs:

1. Average salinity or ratio of salt as per kilogram of water of ocean is__________?

   A. 35 grams
   B. 55 grams
   C. 32 grams
   D. 42 grams

   Submitted by: FAZAL ULLAH

2. Sea water (Salt water) freezes at ?

   A. Same temperature as fresh water.
   B. Slightly higher temperatures than fresh water.
   C. Slightly higher temperature than fresh water.
   D. Sea water does not freeze

   Submitted by: Mansoor Ahmed Suhag

3. The name of the common mineral salt present in sweat is ?

   A. Calcium Oxalate
   B. Potassium Sulphate
   C. Sodium Chloride
   D. Iron Sulphate
   E. None of these

4. A fresh egg when placed in salt water will __________ ?

   A. sink and go to the bottom
   B. sink but will not go to the bottom
   C. Float
   D. Burst

   Submitted by: Abid Hussain

5. An egg sinks in soft water but floats in a concentrated solution of salt because?

   A. egg absorbs salt from the solution and expands
   B. albumin dissolves in salt solution and egg becomes lighter
   C. the density of salt solution exceeds the density of eggs
   D. water has high surface tension

   Submitted by: Malik Asghar Hussain

6. What is the percentage of salt water on earth surface?

   A. 93%
   B. 95%
   C. 97% 
   D. 76%

   Submitted by: Syed Nizakat Ali Shah

7. Sodium carbonate is produced by____________?

   A. haber process
   B. Amonia solvay process
   C. decons process
   D. lead chamber process

   Submitted by: Ayesha zameer

8. Sodium Carbonate is commonly called ________?

   A. Plaster of Paris
   B. Washing Soda
   C. Common Salt
   D. None of these

   Submitted by: Mansoor Ahmed Suhag

9. What is the chemical formula for Sodium carbonate _______ ?

   A. Na3CO2
   B. CNa2O3
   C. Na2CO3
   D. Na3CO3

   Submitted by: Rashid Mehmood

10. Which of the Following Hormones Regulate Blood Sodium and Potassium Levels in the Body?

    A. Aldosterone
    B. Cortisol
    C. Glycogens
    D. Pheromones

    Submitted by: Abid Hussain