Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Alcohols Phenols and Ethers question

2025 · 7 Apr · Shift 1 · Q11
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Alcohols Phenols and Ethers
  5. /2025 · 7 Apr · Shift 1 · Q11

Alcohols Phenols and Ethers question

2025 · 7 Apr · Shift 1 · Q11

JEE MainChemistryAlcohols Phenols and EthersMCQ+4 / −1
Given below are two statements : Statement I : Dimethyl ether is completely soluble in water. However, diethyl ether is soluble in water to a very small extent. Statement II : Sodium metal can be used to dry diethyl ether and not ethyl alcohol. In the light of given statements. choose the correct answer from the options given below
  1. A
    Statement I is false but Statement II are true
  2. B
    Statement I is true but Statement II is false
  3. C
    Both Statement I and Statement II are true
  4. D
    Both Statement I and Statement II are False
View written solutionFree

Correct answer: C

  1. Evaluate Statement I

    Statement I says:

    • Dimethyl ether is completely soluble in water.
    • Diethyl ether is soluble in water only to a very small extent.

    Reasoning:

    • Ethers can form hydrogen bonds with water through the oxygen atom.
    • Lower ethers, having smaller alkyl groups, are more soluble in water.
    • Dimethyl ether has very small hydrophobic groups, so it is highly soluble in water.
    • Diethyl ether has larger ethyl groups, so its hydrophobic character increases and its solubility in water becomes very small.

    Hence, Statement I is true.

  2. Evaluate Statement II

    Statement II says:

    • Sodium metal can be used to dry diethyl ether.
    • Sodium metal cannot be used to dry ethyl alcohol.

    Reasoning:

    • Sodium reacts with water: 2Na+2H2O→2NaOH+H22Na + 2H_2O \rightarrow 2NaOH + H_22Na+2H2​O→2NaOH+H2​ So sodium can remove traces of water from diethyl ether.
    • But sodium also reacts with ethyl alcohol itself: 2C2H5OH+2Na→2C2H5ONa+H22C_2H_5OH + 2Na \rightarrow 2C_2H_5ONa + H_22C2​H5​OH+2Na→2C2​H5​ONa+H2​
    • Therefore, sodium cannot be used to dry ethanol because it reacts with the alcohol.

    Hence, Statement II is true.

  3. Choose the correct option

    Since both statements are true, the correct option is: C\boxed{C}C​

  4. Comparison with stored answer

    Stored correct answer: C

    My derived answer: C

    Therefore, the answers agree.

PreviousNext

More from Alcohols Phenols and Ethers

  • What amount of bromine will be required to convert 2 g of phenol into 2,4,6-tribromophenol? (Given molar mass in gmol−1 of C,H,O,Br are 12,1,16,80 respectively )2025 · MCQ
  • Given below are two statements : Statement (I) : The boiling points of alcohols and phenols increase with increase in the number of C -atoms. Statement (II) : The boiling points of alcohols and phenols are higher in comparison to other…2025 · MCQ
  • Given below are two statements : Statement I : Statement II : In , intramolecular substitution takes place first by involving lone pair of electrons on nitrogen. In the light of the above statements, choose the most appropriate answer from… Includes diagram2025 · MCQ
  • 0.1 mole of compound ‘S’ will weigh ​ g. (Given molar mass in g mol−1 C : 12, H : 1, O : 16) Includes diagram2025 · Numerical
  • Which one of the following, with HBr will give a phenol?2025 · MCQ
  • Match List - I with List - II. Choose the correct answer from the options given below : Includes table2024 · MCQ
  • Common name of Benzene - 1,2 - diol is -2024 · MCQ
  • For the Compounds : (A) H3​C−CH2​−O−CH2​−CH2​−CH3​(B) H3​C−CH2​−CH2​−CH2​−CH3​ (C) (D) The increasing order of… Includes diagram2024 · MCQ