The chemicals and the reaction conditions required for the preparation of ethane are
C2H5I, Zn-Cu, C2H5OH
CH3Cl, Na, H2O
KOOC-CH=CH-COOK, , electrolysis
CH3CO2Na, NaOH, CaO, Δ
A.
C2H5I, Zn-Cu, C2H5OH
Alkyl halides can be reduced to hydrocarbons by means of Zn-Cu couple in presence of alcohol.
Sodium is heated in air at 300°C to form X. X absorbs CO2 and forms Na2CO3 and Y. Which of the following is Y ?
H2
O2
H2O2
O3
Which one of the following reactions does not form gaseous product?
PbO2 + H2O2 →
Acidified KMnO4 + H2O2 →
PbS + H2O2 →
Cl2 + H2O2 →
Which of the following compounds is soluble in benzene but almost insoluble in water?
C2H5OH
CH3CO2H
CH3CHO
C6H5NO2
Which of the following is a pair of functional isomers?
CH3COCH3, CH3CHO
C2H5CO2H, CH3CO2CH3
C2H5CO2H, CHCO2C2H5
CH3CO2H, CH3CHO
In which of the following reactions, MgO is not formed?
Mg + CO2 →
Mg + dil. HNO3 →
Mg + NO
Mg + B2O3
The compound prepared by a substitution reaction of benzene is
acetophenone
glyoxal
cyclohexane
hexabromo cyclohexane
Which of the following is not correct ?
SiO2 is used as acid flux
The distance between the layers in graphite is 3.35 × 10-3 cm.
SiO2 reacts with Na2CO3 and liberates CO.
The hybridisaton of C in graphite is sp2.
Which of the following is not correct ?
Ammonia is used as refrigerant
A mixture of Ca(CN)2 and C is known as nitrolim.
A mixture of Ca(H2PO4)2 and CaSO4 .2H2O is known as superphosphate of lime.
Hydrolysis of NCl3 gives NH3 and HOCl.