PYQ Vault

Ketone with ammonia derivatives: reagent or product (oxime, hydrazone, semicarbazone)

This type of question, asked 6 times: 15 May 2023 S1, 19 Apr 2025 S1, 21 Apr 2025 S1, 13 Apr 2026 S1, 12 May 2026 S1, 14 May 2026 S2. All 7 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    15 May 2023 S1

    74
    Identify the reagent 'R' used in the following reaction. Ketone →R\xrightarrow{R} Semicarbazone

    Tap an option to check your answer.

  2. Question 2

    19 Apr 2025 S1

    63
    Identify the reagent R used in following reaction. Ketone →R\xrightarrow{R} semi carbazone

    Tap an option to check your answer.

  3. Question 3

    21 Apr 2025 S1

    99
    Identify the reagent ' RR ' used in the following reaction. Ketone →R\xrightarrow{R} Semicarbazone

    Tap an option to check your answer.

  4. Question 4

    13 Apr 2026 S1

    40
    Identify the reagent used in the transformation of Ketone into semicarbazone.

    Tap an option to check your answer.

  5. Question 5

    13 Apr 2026 S1

    41
    Identify the product obtained when ketone reacts with NH2-NH2\mathrm{NH_2\text{-}NH_2}.

    Tap an option to check your answer.

  6. Question 6

    12 May 2026 S1

    43
    Which of the following reagents forms semicarbazone when treated with ketones?

    Tap an option to check your answer.

  7. Question 7

    14 May 2026 S2

    40
    Which of the following compounds, when reacted with ketones forms oxime?

    Tap an option to check your answer.