Download App

Organic Chemistry: Some Basic Principles and Techniques — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryOrganic Chemistry: Some Basic Principles and Techniques5 Marks
Question
  1. Two solids which have different solubilities in a solvent and which do not react when dissolved in it.
  2. Liquid that decompose at its boiling point.
  3. Steam volatile liquid and immiscible with water.
  4. Two liquids which have boiling points close to each other.
  5. Two liquids with large difference in their boiling points.
✓

Answer

  1. Fractional crystallisation.
  2. Distillation under reduced pressure.
  3. Steam distillation.
  4. Fractional distillation.
  5. Simple distillation.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "5 Marks Questions" from Organic Chemistry: Some Basic Principles and Techniques→Organic Chemistry: Some Basic Principles and Techniques — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Draw the cis and trans structures of hex-2-ene. Which isomer will have higher b.p. and why?
→
Calculate the total pressure in a mixture of $8$ g of dioxygen and $4$ g of dihydrogen confined in a vessel of $1 dm ^3$ at $27^{\circ} C . R =$ 0.083 bar dm3 K
→
Write the effect of common ion effect on solubility of ionic salts.
→
Explain the Bohr model for the hydrogen atom.
→
On the basis of chemical reactions involved, explain how do chlorofluorocarbons cause thinning of ozone layer in stratosphere.
→
The ionization constant of chloroacetic acid is $1.35 \times 10^{–3}$. What will be the pH of $0.1M$ acid and its $0.1M$ sodium salt solution?
→
What is the pH of 0.001M aniline solution? The ionization constant of aniline can be taken from Table 7.7. Calculate the degree of ionization of aniline in the solution. Also calculate the ionization constant of the conjugate acid of aniline.
→
Note: Consider structures I to VII and answer the questions:
  1. $\text{CH}_3-\text{CH}_2-\text{CH}_2-\text{CH}_2-\text{OH}$
  2. $\text{CH}_3-\text{CH}_2-\text{CH}-\text{CH}_3\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{OH}$
  3. $\ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3\\\ \ \ \ \ \ \ \ \ \ \ \ \ |\\\text{CH}_3-\text{C}-\text{CH}_3\\\ \ \ \ \ \ \ \ \ \ \ \ \ |\\\ \ \ \ \ \ \ \ \ \ \ \ \text{OH}$
  4. $\text{CH}_3-\text{CH}-\text{CH}_2-\text{OH}\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3$
  5. $\text{CH}_3-\text{CH}_2-\text{O}-\text{CH}_2-\text{CH}_3$
  6. $\text{CH}_3-\text{O}-\text{CH}_2-\text{CH}_2-\text{CH}_3$
  7. $\text{CH}_3-\text{O}-\text{CH}-\text{CH}_3\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3$
Which of the above compounds form pairs of metamers?
→
Nitrogen laser produces a radiation at a wavelength of 337.1 nm . If the number of photons emitted is $5.6 \times 10^{24}$, calculate the power of this laser.
→
The pH of $0.005M$ codeine $(C_{18}H_{21}NO_3)$ solution is $9.95$. Calculate its ionization constant and $pK_b$.
→