Related InterviewSolutions

• Ethyl acetoacetate when reacts with one mole methyl magnesium iodide then product of reaction will be :A. `CH_(3)-overset(O)overset(||)(C)-CH_(2)-overset(O)overset(||)(C)-CH_(3)`B. `CH_(3)-underset(CH_(3))underset(|)overset(O^(Θ)Mg^(o+)Br)overset(|)(C)-CH_(2)-overset(O)overset(||)(C)-CH_(3)`C. `CH_(3)-overset(O)overset(||)(C)-underset(overset(o+)(MgBr))overset(Θ)(CH)-CO_(2)Et`D. `CH_(2)^(-)overset(O)overset(||)(C)-CH_(2)-CO_(2)Et`
• How many isomer of `C_(4)H_(10)O` reacts with `CH_(3)MgBr` to evolve `CH_(4)` gas ? (Excluding stereoisomer)
• Match The coloumn I and II. (Matrix)
• Match The coloumn I and II. (Matrix) Match the missing reactant A, B, C, D
• Ethylmercaptan is prepared by the reaction of the following, followed by hydrolysis :A. `C_2 H_5 MgBr + SO_2`B. `C_2 H_5 Mg Br + S`C. `C_2 H_5 MgBr + CS_2`D. `C_2 H_5 Mg Br + H_2 S`.
• Reactivity of with the following `G.R` in the decreasing order is : (i) `MeMgBr` (ii) `EtMgBr` (iii) `Me_2 CH-MgBr` (iv) `Me_3 C - MgBr`.A. `(i) gt (ii) gt (iii) gt (iv)`B. `(iv) gt (iii) gt (ii) gt (i)`C. `(i) gt (ii) gt (iv) gt (iii)`D. `(iv) gt (ii) gt (iii) gt (i)`
• Propane is not formed when `C_3 H_7 MgBr` is treated withA. `H_2`B. PhenolC. Ethanoic acidD. 2-Butyne
• Grignard reagent is usually prepared by `R-X+Mg overset(Et_(2)O)rarrRMgX " " "Grignard reagent"` `Ar-X+Mg overset(Et_(2)O)rarrArMgX " " "Grignard reagent"` Grignard reagent acts s a strong base. Grignard reagent carry out nucleoplilic attack in absence of acidic hydrogen. Grignard reagent form complex with its ether solvent. Complex formation with molecule of ether is an important factor in the formation and stability of Grignard reagent. Which of the following will undergo acid-base reaction with Grignard reagent ?A. `HC-=CH`B. `R-OH`C. `R-CO_(2)H`D. All of these
• Compound A was treated with a large excess of `CH_(3)MgBr`. The resulting products was exposed to `POCl_(3)`/pyridine to give compound B, as one of many products: Which of the following compounds cab be A ?B. C. D.
• Total number of RMgX are consumed in the following reaction