Reactivity order of halides for dehydrohalogenation is
R - F > R - Cl > R - Br > R - I
R - I > R - Br > R - Cl > R - F
R - I > R - Cl > R - Br > R - F
R - F > R - I > R - Br > R - Cl
The correct order of ionization energy for comparing carbon, nitrogen and oxygen atoms is :
C > N > O
C > N < O
C < N > O
C < N < O
Extraction of chlorine from brine solution based on
Oxidation
acidification
chlorination
reduction
Which chlorine atom is more electronegative in the following ?
CH3-Cl
CH3-CH2-Cl
H--Cl
CH3-CH2--Cl
Which one of the following noble gas has an unusual property of diffusing through the materials such as rubber, glass or plastic?
Kr
Ne
Ar
He
Select wrong chemical reaction among the following.
8NH3 + 3Cl2 → 6NH4Cl + N2
2Ca(OH)2 + Cl2 → Ca(OCl)2 + CaCl2 + 2H2O
2NaOH + Cl2 → 2NaCl + H2 + O2
MnO2 + 4HCl → MnCl2 + Cl2 + 2H2O
In the reaction :
X is -
SiC
H2SO4
KMnO4
Fe/ HCl
D.
Fe/ HCl
Reduction of NO2 group to NH2 group is taking place in reaction-