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A solution containing 8 g of substances ...

A solution containing 8 g of substances in 100 g of diethyl ether bolis at `36.86^(@)C`, whereas pure ether boils at `35.60^(@)C`. Determine the molecular mass of the solute. (For ether `K_(b)2.02 K g "mol"^(-1))`

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To determine the molecular mass of the solute, we will use the formula for boiling point elevation, which is given by: \[ \Delta T_b = K_b \times m \] Where: - \(\Delta T_b\) = elevation in boiling point ...
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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-OUTSIDE DELHI (SET-I)
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  5. Silver crystallises in a fcc lattice. The edge length of its unit is 4...

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  6. A solution containing 8 g of substances in 100 g of diethyl ether boli...

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  8. Explain what is observed when (i) KCl, an electrolyte, is added to ...

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  9. What chemcial principal is involved in choosing a reducing agent for g...

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  10. Describe the oxidising action of potassium dichromate and write the io...

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  11. (a) What is the basis of formation of the spectro-chemical series? (...

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  15. Define the following : (i) Order of reaction (ii) Activation energ...

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  16. The half life for radioactive decay of .^(14)C is 5730 years. An archa...

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  17. Assign reasons for the following (i) Sulphur vapour is paramagnetic...

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  19. Giving a chemical equation for each, illustrate the following processe...

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  20. An organic compound A contains 69.77% carbon, 11.63% hydrogen and the ...

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