MCQ
Which of the following statements is not true about polymers?
- APolymers have high viscosity.
- BPolymers do not carry any charge.
- CPolymers scatter light.
- ✓Polymers have low molecular weight.
✓
Answer
Correct option: D.
Polymers have low molecular weight.
Polymers have very high molecular weight $\left(10^3=10^7 \mu\right)$.
Hence, they are called macromolecules. The rest of the properties are given in option $A, B$ and $C$ are true.
Hence, they are called macromolecules. The rest of the properties are given in option $A, B$ and $C$ are true.
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
The plot given below shows $P - T$ curves (where $P$ is the pressure and $T$ is the temperature) for two solvents $X$ and $Y$ and isomolal solutions of $NaCl$ in these solvents. $NaCl$ completely dissociates in both the solvents.
→On addition of equal number of moles of a non-volatile solute $S$ in equal amount (in $kg$ ) of these solvents, the elevation of boiling point of solvent $X$ is three times that of solvent $Y$. Solute $S$ is known to undergo dimerization in these solvents. If the degree of dimerization is $0.7$ in solvent $Y$, the degree of dimerization in solvent $X$ is. . . . . . .
The product obtained from the reaction is
The $pK_a$ values for the three ionizable groups $X , Y$ and $Z$ of glutamic acid are $4.3, 9.7$ and $2.2$ respectively
→$\begin{matrix}
\underset{X}{\mathop{H}}{{O}_{2}}C-C{{H}_{2}}-CH-C{{O}_{2}}\underset{Z}{\mathop{H}}\, \\
\,\,\,\,\,\,\,\,\,\,\,| \\
\,\,\,\,\,\,\,\,\,\,\,\,\,+N{{H}_{3}} \\
\end{matrix}$
The isoelectric point for the amino acid is
The oxidation of toluene to benzaldehyde by chromyl chloride is called
Nitrosobenzene can be isolated from nitrobenzene under
Dacron is polymer of:
`The vapour pressure vs. temperature curve for a solution solvent system is shown below.The boiling point of the solvent is $........\,{ }^{\circ} C$
→When a lead storage battery is charged it act as
Which $\alpha$ amino acid can cross link peptide chains
→Match List $I$ with List $II$
→| List $I$ Complex | List $II$ $CFSE(\Delta_0)$ |
| $A$ $\left[ Cu \left( NH _3\right)_6\right]^{2+}$ | $I$ $-0.6$ |
| $B$ $\left[\operatorname{Ti}\left( N _2 O \right)_6\right]^{3+}$ | $II$ $-2.0$ |
| $C$ $\left[ Fe ( CN )_6\right]^{3-}$ | $III$ $-1.2$ |
| $D$ $\left[ NiF _6\right]^{4-}$ | $IV$ $-0.4$ |
Choose the correct answer from the options given below: