Organic chemistry: Cyclic Hydrocarbons

#1. 12) Poly-chlorinated diphenyl compounds are used as fire isolators and adhesive substances

a)Due to strong stability up to 200 c and they are chemically inactive

b)Due to weak stability up to 800 c and they are chemically inactive

c)Due to strong Stability up to 800 c and they are chemically inactive

d)Due to strong stability up to 500 c and they are chemically active

#2. 13) Polynitro organic compounds such as TNT are strong explosive

a)because their molecules contains their fuel (carbon and oxygen) which is oxidizing agent and weakness of bonds (N) and (O) to form strong bonds between (C-O) in CO2 and the bonds between (N) a nd (N)

b)because their molecules contains their fuel (carbon and hydrogen) which is reducing agent and weakness of bonds (N) and (O) to form strong bonds between (C-O) in CO2 and the bonds between (N) a nd (N)

c)Because their molecules contains their fuel (carbon and oxygen) which is oxidizing agent and weakness of bonds (N) and (O) to form strong bonds between (C-O) in CO2 and the bonds between (N) a nd (N)

d)not correct answer

#3. (14) The head of the detergent molecule is hydrophilic

a)Because it is a molecule attracted to the polar water molecules

b)Because it is an ionized group attracted to the non-polar water molecules

c)Because it is an ionized group not attracted to the polar water molecules

d)Because it is an ionized group attracted to the polar water molecules

#4. (15) Adding detergent so water increases its ability to wet textile.

a)Because it decreases the surface tension of water

b)Because it increases the surface tension of water

c)Because it decreases the surface tension of water

d) a and c

Organic chemistry: Cyclic Hydrocarbons – Quiz 8

Results

#1. 12) Poly-chlorinated diphenyl compounds are used as fire isolators and adhesive substances

#2. 13) Polynitro organic compounds such as TNT are strong explosive

#3. (14) The head of the detergent molecule is hydrophilic

#4. (15) Adding detergent so water increases its ability to wet textile.