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Sonal Chauhan

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  1. Asked: February 8, 2024In: Class 12 Chemistry

    How are alcohols and phenols classified based on the number of hydroxyl groups they contain?

    Sonal Chauhan
    Added an answer on February 10, 2024 at 5:02 am

    Alcohols and phenols are classified based on the number of hydroxyl (OH) groups they contain. The number of hydroxyl groups determines whether they are classified as monohydric, dihydric, trihydric, or polyhydric compounds. Monohydric Alcohols and Phenols: Monohydric Alcohols: These contain one hydrRead more

    Alcohols and phenols are classified based on the number of hydroxyl (OH) groups they contain. The number of hydroxyl groups determines whether they are classified as monohydric, dihydric, trihydric, or polyhydric compounds.

    Monohydric Alcohols and Phenols:

    Monohydric Alcohols: These contain one hydroxyl group per molecule. Examples include methanol (CH₃OH) and ethanol (C₂H₅OH).
    Monohydric Phenols: These also contain one hydroxyl group per molecule but are specifically associated with an aromatic ring. Phenol (C₆H₅OH) is an example of a monohydric phenol.
    Dihydric Alcohols and Phenols:

    Dihydric Alcohols: These have two hydroxyl groups in their molecular structure. An example is ethylene glycol (HO-CH₂-CH₂-OH).
    Dihydric Phenols: These have two hydroxyl groups and an aromatic ring in their structure. Resorcinol (C₆H₄(OH)₂) is an example of a dihydric phenol.
    Trihydric Alcohols:

    Trihydric alcohols contain three hydroxyl groups. Glycerol (propane-1,2,3-triol) is a common example (HO-CH₂-CHOH-CH₂-OH).

    Polyhydric Alcohols and Phenols:

    Alcohols or phenols with more than three hydroxyl groups are classified as polyhydric. An example of a polyhydric alcohol is pentaerythritol, which contains four hydroxyl groups (CHOH)₄.
    In summary, the classification is based on the number of hydroxyl groups present in the molecule, ranging from monohydric to polyhydric compounds.

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  2. Asked: February 7, 2024In: CBSE

    Whose autobiography is “India Wins Freedom”?

    Sonal Chauhan
    Added an answer on February 7, 2024 at 10:14 am

    "India Wins Freedom" is the autobiography of Maulana Abul Kalam Azad. Maulana Abul Kalam Azad (1888–1958) was a prominent Indian scholar, freedom fighter, and the first Minister of Education in independent India. In "India Wins Freedom," his autobiography, Azad provides a firsthand account of the stRead more

    “India Wins Freedom” is the autobiography of Maulana Abul Kalam Azad.
    Maulana Abul Kalam Azad (1888–1958) was a prominent Indian scholar, freedom fighter, and the first Minister of Education in independent India. In “India Wins Freedom,” his autobiography, Azad provides a firsthand account of the struggle for independence, offering insights into his role and the larger freedom movement.

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  3. Asked: February 7, 2024In: CBSE

    Who has written the book Hindu View of Life?

    Sonal Chauhan
    Added an answer on February 7, 2024 at 10:13 am

    The book "Hindu View of Life" was written by Dr. S. Radhakrishnan. Dr. Sarvepalli Radhakrishnan (1888–1975), an eminent philosopher, statesman, and India's second President, authored "Hindu View of Life." A scholar deeply rooted in Hindu philosophy, he showcased the essence of Hinduism's spiritual aRead more

    The book “Hindu View of Life” was written by Dr. S. Radhakrishnan.
    Dr. Sarvepalli Radhakrishnan (1888–1975), an eminent philosopher, statesman, and India’s second President, authored “Hindu View of Life.” A scholar deeply rooted in Hindu philosophy, he showcased the essence of Hinduism’s spiritual and ethical principles, contributing significantly to the understanding and appreciation of Indian philosophy globally.

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  4. Asked: February 7, 2024In: CBSE

    Who is the author of the book A Soldiers General?

    Sonal Chauhan
    Added an answer on February 7, 2024 at 10:13 am

    The author of the book "A Soldier's General" is General J. J. Singh. General Joginder Jaswant Singh, commonly known as J. J. Singh, is a retired Indian Army officer who served as the Chief of Army Staff of the Indian Army from 2005 to 2007. Born on September 17, 1945, he has had a distinguished miliRead more

    The author of the book “A Soldier’s General” is General J. J. Singh.
    General Joginder Jaswant Singh, commonly known as J. J. Singh, is a retired Indian Army officer who served as the Chief of Army Staff of the Indian Army from 2005 to 2007. Born on September 17, 1945, he has had a distinguished military career, and he is also the author of the book “A Soldier’s General.” After his retirement, he has been involved in various public and social activities.

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  5. Asked: February 7, 2024In: Class 10 Social Science

    Who is the author of the book Politics in India?

    Sonal Chauhan
    Added an answer on February 7, 2024 at 10:13 am

    The author of the book "Politics in India" is Rajni Kothari. Rajni Kothari (1928–2015) was a distinguished Indian political scientist and scholar. Renowned for his insightful analysis, he authored "Politics in India," a seminal work that dissects the intricacies of India's political landscape, examiRead more

    The author of the book “Politics in India” is Rajni Kothari.
    Rajni Kothari (1928–2015) was a distinguished Indian political scientist and scholar. Renowned for his insightful analysis, he authored “Politics in India,” a seminal work that dissects the intricacies of India’s political landscape, examining power structures, societal dynamics, and governance, establishing Kothari as a key figure in political studies.

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