4-Hydroxybenzaldehyde is treated with Br to give A; A with NHOH gives B; B is heated with PO to give C.
Consider the above reaction sequence, the Product 'C' is :
← JEE Main 2022 · 29 Jul · Shift 1
ChemistrySingle correct+4 / -1Question 75 of 90
JEE Main 2022 · 29 Jul · Shift 1, Chemistry question 75
Answer and worked solution
Official answer: D
Sequence. The OH directs bromination to both ortho positions: 3,5-dibromo-4-hydroxybenzaldehyde. NH₂OH gives the oxime, and P₂O₅ dehydrates it to the nitrile: 3,5-dibromo-4-hydroxybenzonitrile.
(D)