Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETChemistryHydrogen

What is temporary hardness of water primarily caused by?

Options

  1. APresence of sodium ions
  2. BPresence of calcium and magnesium hydrogen carbonates
  3. CPresence of chlorine compounds
  4. DPresence of iron ions

Correct answer

B. Presence of calcium and magnesium hydrogen carbonates

Step-by-step solution

Temporary hardness of water is primarily caused by the presence of calcium and magnesium hydrogen carbonates.

Practice Hydrogen on Quantrex Academy →

More from Hydrogen

Which of the following statements is NOT true regarding dihydrogen? 2026Which of the following elements belongs to the isotope, tritium? 2026Which of the following mixtures is water gas? 2026Most common isotopes of hydrogen (non-radioactive) is 2019The melting point of solid substances is directly proportional to pressure acting on them. However, ice-melts at a temperature lower than its usual melting point, when the pressure 2016Which of the following atomic and physical properties of hydrogen is false? 2015Point out the correct statement. 2015Number of hydrogen-bonded water molecules associated in CuSO ₄ 5 H ₂ O is 2013 Full Hydrogen list All NEET PYQs