(I)
(II)
(III)
The correct order of reactivity of I,II and III towards addition reactions is:
I>III>II
I>II>III
III>II>I
III>I>II
Which of the following reactants is suitable for the preparation of methane and ethane by using one-step only?
H2C = CH2
CH3OH
CH3-Br
CH3-CH2-OH
→Br2/hv Monobromo derivatives
The number of possible monobromo products is (excluding stereoisomers):
4
On catalytic reduction by one mole H2/Pt ,how many alkenes will give n-butane?
→HCl; Major product of the reaction is:
()
| CH2—CO2 KCH2—CO2 K→electrolysis (A)(major) (Kolbe electrolysis method)
Product (A) of the reaction is :
CH3-CH3
CH2=CH2
CH3-CH=CH2
none of these
cis-2-butene →PeroxideHBrProduct of the reaction is :
Diastereomer
Meso
E and Z isomer
Acetylene and HCHO reaction to the presence of copper acetylide catalyst to form
2-Butyne-1,4-diol
But-2-yne-1,2-diol
But-1-yne-1,4-diol
None of these
Which of the following bromides is the major product of the reaction shown below, assuming that there are no carbocation rearrangement?+HBr →(1 Equivalent) C13H17Br
What is a likely product of the reaction shown?
Which of the following, when undergoing addition of HBr, will form ONLY a pair of diastereomers?
Which of the following is the best stereochemical representation when reaction between 1 -methylcyclohexene and NBS react in aqueous dimethyl sulfoxide?
() None of these
CH3-CH||CH3CH3+H2C = CH2→2.50CHF(A); (A) is:
(a)
(b)
(c)
(d) CH3-CH|CH3-CH2-CH=CH2
Di-imide (N2H2) is used to reduce double bond of:
-C|=O
(2) -C≡N
(3) -NO2
(4) -CH=CH-
End product of the reaction is:-(a)(b)
(c) (d)
Product (A) is:-
Compound (A) is :
MMPP → Magnesium mono peroxy phthalate. Product (X) is:
Product (A) is:
Ph-CH2-Cl
Ph-CH2-Br
Ph-CH2-CCl3
Ph-CH2-CBrCl2
Which one of the following compounds gives acetone (CH3)2C=O as one of the products of
Trans-cyclohexane-1,2-diol can be obtained by the reaction of cyclohexane with:
KMnO4
OsO4
peroxy formic acid/H3O+
SeO2
→(2) NaBH4, HO-(1) (CF2CO2)2Hg, CH3CH2OH (P)(100%); Product (P) is :
What is the major product expected form the following reaction?
(d)
Addition of OsO4 to cyclopentene generates:
Racemic product
Meso product
Optically active product
The major product of the following reaction is:
CH3-CH=CH2 + HBr →(C6H5CO)2O2
CH3-CH2-CH2-Br
CH3CH(Br)-CH3
BrCH2-CH=CH2
Which series of reactions will achieve the following transformation?
(a) Cl2/CCl4 Br2
(b) HBr Cl2/CCl4
(c) Cl2/CCl4 NBS/hv
(c) NBS/hv Cl2/CCl4
1 2
The principal organic product formed in the reaction given below is:-CH2=CH(CH2)8COOH+HBr→... peroxide
CH2=CH(CH2)8COBr
CH2BrCH2(CH2)8COOH
CH2=CH(CH2)7CHBrCOOH
When 2-butyne is treated with H2 Pd-BaSO4, the product formed will be-
cis-2-Butene
trans-2-Butene
1-Butene
2-Hydroxy butane
The major product formed in the reaction is:
(a) (b)
the correct relation of rate of reaction towards reduction using (H2/Pt):
a>b
a=b
b>a
Reduction is not possible
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