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Which of the following is a use of alum...

Which of the following is a use of alum

A

Making explosives

B

Bleaching clothes

C

Water softening

D

All of the above

Text Solution

Verified by Experts

The correct Answer is:
C
Alums are used as water softener. These are also used in tanning of leather, as mordant in dyeing and to stop bleeding.
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ERRORLESS-HYDROGEN-NCERT BASED QUESTION (Water or Hydride of Oxygen)
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  2. The low density of ice compared to water is due to

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  3. Which of the following is a use of alum

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  4. The alum used for purifying water is

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  5. Match List I with List II. Select the correct answer using the codes g...

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  6. Maximum number of hydrogen bonding in H(2)O is

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  7. Why do calcium ions make water hard but sodium ions do not ?

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  8. D(2)O is preferred to H(2)O, as a moderator, in nuclear reactors becau...

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  9. Brackish water mostly contains

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  10. Which of the following ions will cause hardness in water sample?

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  11. Systematic name of H(2)O is

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  12. Synthetic detergents are more effective in hard water than soaps becau...

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  13. Temporary hardness may be removed from water adding.

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  14. Water softening by Clarke's process uses

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  15. Which of the following will determine whether the given colourless liq...

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  16. Permanent hardness of water is due to the presence of

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  17. Which of the following will cause softening of hard water ?

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  18. By adding which of the following process, permanent hardness of water ...

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  19. Permutit is technical name given to

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  20. Sodium sulphate is soluble in water but barium sulphate is insoluble b...

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