1.
Buckminster fullerene is an allotropic form of
2.
While cooking if bottom of the vessel is getting blackened in the outside, it means that
3.
Chlorine reacts with saturated hydrocarbons at room temperature in the
4.
The first member of alkyne homologous series is
5.
Which of the following statements are usually correct for carbon compounds? These (i) Are good conductors of electricity (ii) Are poor conductors of electricity (iii) Have strong forces of attraction between their molecules (iv) Do not have strong forces of attraction between their molecules
8.
A molecule of ammonia (NH3) has
9.
Butanone is a four carbon compound with functional
10.
Identify the unsaturated compounds from the following (i) Propane (ii) Propene (iii) Propyne (iv) Chloropropane
12.
In which of the following compounds, -OH is the functional group?
14.
Which of the following does not belong to the same homologous series?
16.
Ethanol reacts with sodium and forms two products. These are
17.
Mineral acids are stronger acids than carboxylic acids because (i) mineral acids are completely ionised (ii) carboxylic acids are completely ionised (iii) mineral acids are partially ionised (iv) carboxylic acids are partially ionised
18.
Carbon forms four covalent bonds by sharing its four valence electrons with four univalent to e.g., hydrogen. After the formation of four bonds, carbon attains the electronic configuration of
19.
Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of
20.
Carbon exists in the atmosphere in the form of
