A nitrogeneous substance X is treated with HNO2 and the product so formed is further treated with NaOH solution, which produces blue colouration. X can be
1. CH3CH2NH2
2 CH3CH2NO2
3. CH3CH2ONO
4 (CH3)2CHNO2
The compound which reacts fastest with Lucas reagent at room temperature is:
1. Butan-1-ol
2. Butan-2-ol
3. 2-methylpropan-1-ol
4. 2-methylpropan-2-ol
An amine is reacted with benzene sulphonyl chloride then a solid compound is formed which is insoluble in alkali. The amine is:
1. CH3-CH2-NH2
2. CH3-NH-CH2-CH3
3. (CH3)3N
4. C6H5-NH2
A positive carbylamine test is shown by which one of the following?
1. N, N-diethyl aniline
2. N-methyl propyl amine
3. N, N-diethyl butyl amine
4. 2, 4-dimethyl aniline
Victor Meyer Test is used for the distinguished of 1, 2 and 3
1. Alcohols
2. Alkyl halides
3. Nitro Compounds
4. All of these
Which of the following gives the fastest Lucas test?
1. | CH2 = CH-CH2OH | 2. | C6H5 - CH2OH |
3. | 4. |
The reaction,
(1) CH3CHXCHO
(2) CH2XCHCHO
(3) CH2=CHCHX2
(4) none of these
An unknown compound A has a molecular formula C4H6. When A is treated with excess of Br2 a new substance B with formula C4H6Br4 is formed. A forms a white ppt. with ammoniacal silver nitrate solution. A may be-
1. But-1-yne
2. But-2-yne
3. But-1-ene
4. But-2-ene
The appropriate reagent for the following transformation,
is :
(1) Zn(Hg),HCl
(2) NH2NH2, OH-
(3) H2/Ni
(4) NaBH4
The reduction of an alkyne to alkene using Lindlar's catalyst results into:
(1) cis-addition of hydrogen atoms
(2) trans-addition of hydrogen atoms
(3) a mixture obtained by cis- and trans-additions of hydrogen which are in equilibrium with each other
(4) a mixture obtained by cis- and trans-additions of hydrogen atoms which are not in equilibrium with each other.