Which of the following statement$(s)$ is/are incorrect?
$(a)$ $PHBV$ and $Nylon-2-nylon-6$ are biodegradable polymers.
$(b)$ Bakelite is a polymer of urea and formaldehyde.
$(c)$ Novolac is a linear product of phenol and formaldehyde and is used in paints.
$(d)$ Terylene and $Nylon-6,6$ are examples of thermoplastic polymers.
$(e)$ Teflon is an addition polymer.
$(a)$ $PHBV$ and $Nylon-2-nylon-6$ are biodegradable polymers.
$(b)$ Bakelite is a polymer of urea and formaldehyde.
$(c)$ Novolac is a linear product of phenol and formaldehyde and is used in paints.
$(d)$ Terylene and $Nylon-6,6$ are examples of thermoplastic polymers.
$(e)$ Teflon is an addition polymer.
- A$a, c, d$
- B$b, c, e$
- C$c, d$
- D$b, d$
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Similar Questions
Polyethylene is prepared from calcium carbide as follows:
$CaC_2 + 2H_2O \to Ca(OH)_2 + C_2H_2$
$C_2H_2 + H_2 \to C_2H_4$
$nC_2H_4 \to (-CH_2-CH_2-)_n$
Calculate the amount of polyethylene produced from $64 \ kg$ of $CaC_2$. (in $kg$)
$CaC_2 + 2H_2O \to Ca(OH)_2 + C_2H_2$
$C_2H_2 + H_2 \to C_2H_4$
$nC_2H_4 \to (-CH_2-CH_2-)_n$
Calculate the amount of polyethylene produced from $64 \ kg$ of $CaC_2$. (in $kg$)
Difficult
View SolutionMatch the following:
List-$I$ List-$II$ $A$. $(CH_2-C(Cl)=CH-CH_2)_n$ $I$. Cross-linked network $B$. Nylon-$6,6$ $II$. Elastomer $C$. $HDP$ $III$. Fibre $D$. Melamine-formaldehyde $IV$. Ziegler-Natta catalyst
| List-$I$ | List-$II$ |
|---|---|
| $A$. $(CH_2-C(Cl)=CH-CH_2)_n$ | $I$. Cross-linked network |
| $B$. Nylon-$6,6$ | $II$. Elastomer |
| $C$. $HDP$ | $III$. Fibre |
| $D$. Melamine-formaldehyde | $IV$. Ziegler-Natta catalyst |
Match List-$I$ with List-$II$.
List-$I$ (Chemicals) List-$II$ (Use / Preparation / Constituent) $(a)$ Alcoholic potassium hydroxide $(i)$ Electrodes in batteries $(b)$ $Pd / BaSO_4$ $(ii)$ Obtained by addition reaction $(c)$ $BHC$ (Benzene hexachloride) $(iii)$ Used for $\beta$-elimination reaction $(d)$ Polyacetylene $(iv)$ Lindlar's catalyst
Choose the most appropriate match.
| List-$I$ (Chemicals) | List-$II$ (Use / Preparation / Constituent) |
|---|---|
| $(a)$ Alcoholic potassium hydroxide | $(i)$ Electrodes in batteries |
| $(b)$ $Pd / BaSO_4$ | $(ii)$ Obtained by addition reaction |
| $(c)$ $BHC$ (Benzene hexachloride) | $(iii)$ Used for $\beta$-elimination reaction |
| $(d)$ Polyacetylene | $(iv)$ Lindlar's catalyst |
Choose the most appropriate match.
Assertion : $1, 3-$ Butadiene is the monomer for natural rubber.
Reason : Natural rubber is formed through anionic addition polymerization.
Reason : Natural rubber is formed through anionic addition polymerization.
MediumAIIMS 2006
View SolutionMatch the following:
$A$. Teflon $I$. $SnCl_2$ $B$. Anionic polymerisation $II$. $C_2F_4$ $C$. Cationic polymerisation $III$. Bakelite $D$. Thermosetting polymer $IV$. Polystyrene $V$. $RLi$
The correct answer is:
| $A$. Teflon | $I$. $SnCl_2$ |
| $B$. Anionic polymerisation | $II$. $C_2F_4$ |
| $C$. Cationic polymerisation | $III$. Bakelite |
| $D$. Thermosetting polymer | $IV$. Polystyrene |
| $V$. $RLi$ |
The correct answer is:
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