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Which of the following is the scientific...

Which of the following is the scientific method to test presence of water in a liquid ?

A

Smell

B

Taste

C

Use of litmus paper

D

Use of anhydrous copper sulphate

Text Solution

Verified by Experts

The correct Answer is:
D
It turns anhydrous `CuSO_4` blue
Anhy.`underset(("White")" "(Blue))(CuSO_4+5H_2OrarrCuSO_(2).5H_2O`
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DINESH PUBLICATION-PURIFICATION & CHARACTERISATION OF ORGANIC COMPOUND -Revision Q.F.Competitive exams
  1. Empirical formula of compound is CH(2)O.If its molecular weight is 180...

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  2. The Beilstein test for organic compounds is used to detect

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  3. Which of the following is the scientific method to test presence of wa...

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  4. Which of the following has molecular weight of 92 ?

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  5. Empirical formula of a compound is CH(2)O. If its vapour density is 90...

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  6. Which of the following compounds does not show Lassaine's test for nit...

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  7. 0.1914 g of an organic acidi s dissolved in about 20 ml of water. 25 ...

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  8. An organic compound contains 49.3 % carbon,6.84 % hydrogen and its vap...

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  9. The empirical formula of an acid is CH(2)O(2) the probable molecular f...

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  10. In paper chromatography,

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  11. If 0.765 g of an acid gives 0.535 g of CO(2) and 0.138 g of H(2)O, the...

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  12. Percentage of Se (at. mass 3 78.4) in peroxidase anhydrase enzyme is 0...

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  13. In a hydrocarbon, mass ratio of hydrogen and carbon is 1 : 3, the empi...

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  14. The empirical formula of a compound is CH2 . One mole of compound has ...

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  15. An organic compound containing carbon hydrogen and oxygen contains 52 ...

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  16. In a compound C, H, N atoms are present in 9:1:3.5 by weight. Molecula...

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  17. Empirical formula of a compound is CH(2)O and its molecular mass is 9...

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  18. An organic compound on analysis gave C=39.9 % ,H= 6.7 % and O =53.4 % ...

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  19. Which of the following statements is wrong ?

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  20. If we want to study the relative arrangement of atoms in a molecule, w...

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