When a river meets the ocean they generally form delta due to :
Correct answer: A. Coagulation of sand
- A. Coagulation of sand
- B. sedimentation of common salt
- C. deposition of MgCl2
- D. mutual coagulation
Explanation
Sand is a negatively charged colloidal particles, which is carried by river to the ocean which is a vast reservoir of Na+, Mg+,K+, ion. These cations coagulate sand particles at the meeting point of river and ocean. In this way delta is formed.
Last updated
About Solutions and Colloids
Solutions are described using molarity, molality, normality, mole fraction, percentage concentration and parts per million. Coverage also includes vapour-pressure lowering, boiling-point elevation, freezing-point depression and osmotic pressure, then distinguishes true solutions, colloids and suspensions by particle size, stability, light scattering and settling.
Practise Solutions and Colloids
119 free Solutions and Colloids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
The osmotic pressure of equimolar solutions of BaCl2, NaCl and sucrose will be in the order:
Consider NaCl produced in the equation: FeCl3+ NaOH → Fe(OH)3 + NaCl 175.5g of NaCl was dissolved in water to make a liter of solution, the molarity would be:
An azeotropic mixture of two liquids has a boiling point higher than either of them when it:
The number of moles of solute dissolved per liter of solution is called:
From a mixture of CO2 and H2 gases, CO2 can be separated by passing the mixture through: