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……. ppm concentration of flouride ion ca...

……. ppm concentration of flouride ion causes a stain of teeth.

A

`1.5`

B

1

C

`0.5`

D

2

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The correct Answer is:
A
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KUMAR PRAKASHAN-SOLUTIONS -SECTION - E Multiple Choice Questions (MCQs)
  1. Give mole fraction of solute present in 1.00 m aqueous solution.

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  2. Find out molarity of NO(3)^(-) ions in solution when mixing 2 litre 3 ...

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  3. Which equimolal concentrated solution has highest freezing point ?

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  4. Brass is mixture of …… metals.

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  5. Bronze is mixture of ………. metals.

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  6. …….. ppm of F^(-) ion in water can stop decay of teeth.

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  7. German silver is a alloy of …… metal.

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  8. ……. ppm concentration of flouride ion causes a stain of teeth.

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  9. At certain temperature, vapour pressure of pure element A and B has 10...

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  10. Four solution of K(2)SO(4) possess concentration of 0.1 m, 0.001 m and...

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  11. Osmotic pressure of aqueous solution of urea is 500 mm at 283 K. If it...

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  12. Which of the following aqueous solution has same osmotic pressure ? ...

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  13. ……… solution has highest freezing point.

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  14. If non ideal solution is prepared by mixing 30 mL CHCl(3) and 50 mL Ac...

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  15. Density of solution prepared by dissolving 120 gm urea in 1000 gm wate...

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  16. If 25 gram of Na(2)SO(4) is dissolved in 10^(3) kilogram solution, the...

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  17. How much gram of acid should be present in 100 mL volume of solution t...

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  18. If 6.022xx10^(20) molecules are present in 100 mL urea solution, then ...

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  19. Find out mlarity of solution on addition of 200 mL of water in 500 mL ...

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  20. Increase in boiling point is solution ……… prepared by dissolving 13.44...

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