1 |
Hydrogenation of vegetable oil to convert it into banaspatic ghee is carried out in the presence of catalyst: |
Ni-metal
Zn-metal
Na - Metal
Fe2O3
|
2 |
Ethen is prepared by heating a mixture of ethanol and excess of concentrated sulphuric acid at: |
150°C
180°C
250°C - 300°C
400°C - 450°C
|
3 |
Olefins is a Latin word meaning: |
inert
less reactive
oil forming
most reactive
|
4 |
Which one of these is used as anaesthesia? |
carbon black
Mehtane
Ethane
Chloroform
|
5 |
Hydrogenation of alkenes and alkynes may be carried out at room temperature in the presence of catalyst: |
Pt or Pd
Ni
Zn
Fe2O3
|
6 |
Marsh gas is mostly : |
ethane
methane
butane
propane
|
7 |
Volatility of hydrocarbons deceases with: |
decrease of molecular mass
increase of molecular mass
increase of double or triple bonds
decrease of triple bonds
|
8 |
Which one of the following is gas at room temperature: |
C2H6
C6H14
C6H6
C8H18
|
9 |
Which one of the following is a synthetic fiber: |
cotton
wool
nylon
silk
|
10 |
Petroleum is refined by: |
destructive distillation
fractional distillation
simple distillation
dry distillation
|
11 |
Alkanes are also called: |
olefins
Paraffins
aliphatic compound
cyclic compounds
|
12 |
The black residue of the coal tar is called: |
peat
lignite
pitch
matte
|