The temporary hardness of water is due to: (a) \( \mathrm{Ca}\left(\mathrm{HCO}_{3}\right)_{2} \...

Channel:
PW Solutions
Subscribers:
445,000
Published on ● Video Link: https://www.youtube.com/watch?v=zC0-gKCk8o4


Duration: 2:59
1 views
0

The temporary hardness of water is due to:
(a) \( \mathrm{Ca}\left(\mathrm{HCO}_{3}\right)_{2} \)
(b) \( \mathrm{NaCl} \)
(c) \( \mathrm{Na}_{2} \mathrm{SO}_{4} \)
(d) \( \mathrm{CaCl}_{2} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-07-03The synonym for water gas when used in the production of methanol is: (a) natural gas (b) laughi...
2023-07-03The chemical nature of hydrogen peroxide is: (a) Oxidising and reducing agent in acidic medium, ...
2023-07-03The hydride that is NOT electron deficient is: (a) \( \mathrm{B}_{2} \mathrm{H}_{6} \) (b) \( \m...
2023-07-03\( \mathrm{NaH} \) is an example of: (a) Electron-rich hydride (b) Molecular hydride (c) Saline ...
2023-07-03The total number of isotopes of hydrogen and number of radioactive isotopes among them, respecti...
2023-07-03The hardness of a water sample (in terms of equivalents of \( \mathrm{CaCO}_{3} \) ) containing ...
2023-07-03Among the following reactions of hydrogen with halogens, the one that requires a catalyst is: (a...
2023-07-03In which of the following reaction, hydrogen peroxide acts as an oxidizing agent ? (a) \( \mathr...
2023-07-03The isotopes of hydrogen are : (a) Tritium and protium only (b) Deuterium and tritium only (c) P...
2023-07-03From the following statements regarding \( \mathrm{H}_{2} \mathrm{O}_{2} \), choose the incorrec...
2023-07-03The temporary hardness of water is due to: (a) \( \mathrm{Ca}\left(\mathrm{HCO}_{3}\right)_{2} \...
2023-07-03Permanent hardness in water cannot be cured by: (a) Treatment with washing soda (b) Calgons meth...
2023-07-03Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of...
2023-07-03Which of the following statements about \( \mathrm{Na} 2 \mathrm{O} 2 \) is not correct ? (a) \(...
2023-07-03In which of the following reaction \( \mathrm{H}_{2} \mathrm{O}_{2} \) acts as a reducing agent ...
2023-07-03Find out the value of \( x \) in ion \( \left[\mathrm{H}_{x} \mathrm{O}_{4}\right]^{+} \):
2023-07-03Find out the number of following orders which are correct against the mentioned properties: (i) ...
2023-07-03Find out the sum of protons, electrons and neutrons in the heaviest isotope of hydrogen.
2023-07-03Which of the following statement(s) is/are correct? (a) Metallic hydrides are deficient of hydro...
2023-07-03Which of the following processes can be used for preparation of \( \mathrm{H}_{2} \) gas? (a) Di...
2023-07-03Which of the following statement(s) is/are correct? (a) Elements of group 15 form electron defic...