Chemical formula of Teflon is-

(1) (-CF₂-CF₂-)_n 
(2)
(3) (-CH₂-CH₂-)_n
(4) None

The allotrope of carbon in amorphous form among the following is .......

(1) Diamond
(2) Graphite
(3) Buckministerfullerene
(4) Coal

Which compound is used to make a soap antiseptic ? 

(1) glycerol 
(2) sulphonic acid 
(3) bithional 
(4) glycerine

Which of the following organic molecules does not have carbon-carbon double bond

(1) C₃H₄O
(2) C₃H₄O₂
(3) C₃H₈O
(4) C₆H₆O

Soaps are used to clean clothes. Which one is correct statement in this respect?

(1) Soap is a sodium salt of an aromatic acid
(2) During cleaning micelles are formed
(3) Using soap hard water cannot be distinguished
(4) Soap can be used in hard water for bett er cleaning of clothes