reagent R
← 2
1 →
R1 and R2 are – (A) Cold alkaline KMnO4, OsO4/H2O2 (C) Cold alkaline KMnO4, CH3–O–O–CH3
Q.47
(B) Cold alkaline KMnO4, HCO3H (D) C6H5CO3H, HCO3H
CH 3 | H−C alkaline KMnO || 4 → A, which is true about this reaction? H−C | CH 3
(A) A is meso 2, 3–butan–di–ol formed by syn addition (B) A is meso 2, 3–butan–di–ol formed by anti addition (C) A is a racemic mixture of d and l, 2, 3–butan–di–ol formed by anti addition (D) A is a racemic mixture of d and l 2,3–butan–di–ol formed by syn addition +
O3 / H 2O / Zn Con . H SO + CH3MgBr H 3O → C → A 24 → B
Q.48
A, B and C are – A
B
C
(A)
(B)
(C)
(D)
Q.49
A → ∆
A can be – (A) Conc. H2SO4
(B) alcoholic KOH
(C) Et3N
12
(D) t-BuOK
Page 12 of 40 HYDROCARBONS
reagent R
Q.46