MCQ
Which of the following is a fully flourinated polymer?
- AThiokol
- ✓Teflon
- CNeoprene
- D$\text{PVC}$
✓
Answer
Correct option: B.
Teflon
Polytetrafluoroethylene $\text{(PTFE)}$ or Teflon is formed by tetrafluoroethylene. Thiokol, Neoprene, and $\text{PVC}$ are formed by polysulphide, chloroprene, vinylchloride.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Mixture($s$) showing positive deviation from Raoult's law at $35^{\circ} \mathrm{C}$ is(are)
→($A$) carbon tetrachloride + methanol ($B$) carbon disulphide + acetone ($C$) benzene + toluene ($D$) phenol + aniline
Zero value of $CFSE$ orbserved in
→What is reactant $A$ ?
→$C _{12} H _{22} O _{11}+ H _{2} O \stackrel{\text { Enzyme A }}{\longrightarrow} C _{6} H _{12} O _{6}+ C _{6} H _{12} O _{6}$
→Sucrose $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ Glucose $\quad$ Fructose
$C _{6} H _{12} O _{6} \stackrel{\text { Enzyme B }}{\longrightarrow} 2 C _{2} H _{5} OH +2 CO _{2}$
Glucose
In the above reactions, the enzyme $A$ and enzyme $B$ respectively are :-
The reaction of $N{a_2}{S_2}{O_3}$ with iodine gives
→In the following reaction $A$ is
→Match each coordination compound in List-$I$ with an appropriate pair of characteristics from List-$II$ and select the correct answer using the code given below the lists.
→$\left\{ en = H _2 NCH _2 CH _2 NH _2\right.$; atomic numbers: $\left.Ti =22 ; Cr =24 ; Cp =27 ; Pt =78\right\}$
| List-$I$ | List-$II$ |
| $P.$ $\left[ Cr \left( NH _3\right)_4 Cl _2\right) Cl ]$ | $1.$ Paramagnetic and exhibits ionisation isomerism |
| $Q.$ $\left[ Ti \left( H _2 O \right)_5 Cl \right]\left( NO _3\right)_2$ | $2.$ Diamagentic and exhibits cis-trans isomerism |
| $R.$ $\left[ Pt ( en )\left( NH _3\right) Cl \right] NO _3$ | $3.$ Paramagentic and exhibits cis-trans isomerism |
| $S.$ $\left[ Co \left( NH _3\right)_4\left( NO _3\right)_2\right] NO _3$ | $4.$ Diamagentic and exhibits ionisation isomerism |
Codes: $ \quad P \quad Q \quad R \quad S $
The gas produced by treating an aqueous solution of ammonium chloride with sodium nitrite is .... .
Diffusion of solvent through a semi permeable membrane is called