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When the temperature is raised, viscosit...

When the temperature is raised, viscosity o the liquid decreases. This is because

A

volume of the solution decreases

B

increase in temperature increases the average kinetiic energy of the molecules which overcomes the attractive forces between them

C

covalent and hydrogen bond forces decreases

D

attraction between the molecule increases.

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The correct Answer is:
B
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NCERT FINGERTIPS ENGLISH-PRACTICE PAPER 3-Practice Paper 3
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  2. The liquefaction behaviour of temporary gases approacches that of perr...

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  3. When the temperature is raised, viscosity o the liquid decreases. This...

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  4. the pH of a solution prepared by mixing 2M, 100 mL HCl and M, 200 mL N...

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  5. In which of the following ionisation processes, the bond order has inc...

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  6. In which of the following pairs, the hybridisation of central atoms is...

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  7. Select correct statement for BrF(5).

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  8. Consider a P(y) orbital of an atom and identify correct statement

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  9. Which of the following will have maximum dipole moment?

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  10. Which of the following is not the consequence of H-bonding?

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  11. The two equilibrium AB hArr A^(+) + B^(-) and AB+B^(-)hArrAB(2)^(-) ar...

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  12. Consider the following equilibrium in a closed container, N(2)O(4(g)...

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  13. The degree of dissociation alpha of the reaction" N(2)O(4(g))hArr 2N...

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  14. (I) H(2)O(2)+O(3) to H(2)O+2O(2) (II) H(2)O(2)+Ag(2)O to 2Ag+H(2)O+O...

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  15. Which set of quantum numbers is possible for the last electron of Mg^(...

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  16. Which of the following reactions is said to be entropy driven?

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  17. If 10^(21) molecules are removed from 200 mg of CO(2), the number of m...

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  18. The ions O^(-2),F^(-),Mg^(2+) and Al^(3+) are isoelectronic. Their ion...

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  19. The pH of 0.004 M hydrazine solution is 9.7. its ionisation constant (...

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  20. The vapoour density of a mixture containing NO(2) and N(2)O(4) is 38.3...

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