Question:
Grignard reagent should be prepared under anhydrous conditions. Give reasons.
Grignard reagent should be prepared under anhydrous conditions. Give reasons.
Updated On: Jan 13, 2026
Hide Solution
Verified By Collegedunia
Solution and Explanation
Grignard reagents (RMgX) are highly reactive towards moisture. If water is present, it reacts with the Grignard reagent, forming an alkane instead of undergoing the desired reaction. This is why anhydrous conditions are necessary during preparation and storage.
Was this answer helpful?
0
0
Top Questions on Aldehydes And Ketones
A student is given one compound among the following compounds that gives positive test with Tollen's reagent. The compound is:
- JEE Main - 2026
- Chemistry
- Aldehydes And Ketones
- The unsaturated ether on acidic hydrolysis produces carbonyl compounds as shown below. Based on this, predict the solution/reagent that will help to distinguish "P" and "Q" obtained in the reaction.
- JEE Main - 2026
- Chemistry
- Aldehydes And Ketones
- Given below are two statements:
Statement I: Cross aldol condensation between two different aldehydes will always produce four different products.
Statement II: When semicarbazide reacts with a mixture of benzaldehyde and acetophenone under optimum pH, it forms a condensation product with acetophenone only.
- JEE Main - 2026
- Chemistry
- Aldehydes And Ketones
Observe the following reaction and same reaction is carried out with the following compound:
X and Y can be differentiated by:
- JEE Main - 2026
- Chemistry
- Aldehydes And Ketones
- Statement-I: Two different aldehydes on cross aldol condensation always give four products.
Statement-II: Among benzaldehyde and acetophenone, only acetophenone reacts with semicarbazide.
- JEE Main - 2026
- Chemistry
- Aldehydes And Ketones
View More Questions
Questions Asked in CBSE CLASS XII exam
- Vishesh, Manik and Amit were partners in the ratio 5 : 4 : 1. Amit retired on 31st March, 2024. Vishesh and Manik decided to share Amit’s share in the ratio 2 : 3. What will be the new profit sharing ratio between Vishesh and Manik?
- CBSE CLASS XII - 2025
- Retirement and Death of a Partner
- The electric field in a region is given by \( \vec{E} = 40x \hat{i} \, \text{N/C}. \) Find the amount of work done in taking a unit positive charge from a point (0, 3m) to the point (5m, 0).
- CBSE CLASS XII - 2025
- Electrostatics
- Consider the Linear Programming Problem, where the objective function \[ Z = x + 4y \] needs to be minimized subject to the following constraints: \[ 2x + y \geq 1000, \] \[ x + 2y \geq 800, \] \[ x \geq 0, \quad y \geq 0. \] Draw a neat graph of the feasible region and find the minimum value of $Z$.
- CBSE CLASS XII - 2025
- Linear Programming Problem
- A rectangular glass slab ABCD (refractive index 1.5) is surrounded by a transparent liquid (refractive index 1.25) as shown in the figure. A ray of light is incident on face AB at an angle \(i\) such that it is refracted out grazing the face AD. Find the value of angle \(i\).
- CBSE CLASS XII - 2025
- Refraction
- Considering the case of magnetic field produced by air-filled current carrying solenoid, show that the magnetic energy density of a magnetic field \( B \) is \( \frac{B^2}{2\mu_0} \).
- CBSE CLASS XII - 2025
- Magnetic Field
View More Questions