Surface Chemistry · Chemistry · MHT CET
MCQ (Single Correct Answer)
Which from following metal nanoparticle is used for coating the filter material that acts as effective bacterial disinfectant?
Which from following metal nanoparticle is used for coating the filter material that acts as effective bacterial disinfectant?
Which from following is classified multimolecular colloid?
Which of the following ion exihibits maximum power of coagulation for positively charged Sol ?
Which from following process does NOT results in coagulation?
Identify the catalyst used in following reaction at $500^{\circ} \mathrm{C}$ ?
$$ \mathrm{CO}+\mathrm{H}_2 \mathrm{O} \rightleftharpoons \mathrm{CO}_2+\mathrm{H}_2 $$
Which from following represents the Freundlich's empirical equation for adsorption of gas on solid (for $\mathrm{n}>1$ )?
Identify sequential reactions involved in Sol-Gel process.
Identify the property of colloidal solutions so that colloidal particles move freely towards respective electrodes under an applied electrical potential.
Which from following gases is adsorbed to greater extent if adsorbent remains same at similar conditions of temperature and pressure?
Which of the following is not negatively charged sol?
Identify example of sorption from following.
Match column I (process) with column II (application)
| Column I | Column II | ||
|---|---|---|---|
| i. | Dialysis | a. | Cleansing action of soap |
| ii. | Peptization | b. | Coagulation |
| iii. | Emulsificatioin | c. | Colloidal solution preparation |
| iv. | Electrophoresis | d. | Purification of colloidal solution |
Identify positively charged sol from the following.
Which from following is a largest size nanomaterial?
Identify one dimensional nanostructure from following.
What is the value of slope in Freundlich adsorption isotherm $\log \frac{\mathrm{x}}{\mathrm{m}}$ against $\log \mathrm{C}$ ?
Identify dispersed phase and dispersion medium in fog respectively.
Which among the following is an example of emulsion?
Which from following statements is NOT true about absorption?
What type of colloid is the soap lather?
Identify the instrument used to find the structure of surface of material.
Which from following anions has maximum coagulating power for precipitation of positive sol?
What type of colloid is milk?
Which from following anions has lowest coagulating power for precipitation of positive sol?
Identify a zero dimensional nano structure from following
Which from following statements is NOT true about lyophilic colloids?
Which is NOT an example of macromolecular colloid?
Which from following is an example of multimolecular colloids?
Identify dispersed phase and dispersion medium in cheese.
| Dispersed Phase | Dispersion medium | |
|---|---|---|
| 1 | liquid | solid |
| 2 | liquid | liquid |
| 3 | solid | liquid |
| 4 | solid | solid |
Which of the following is an example of heterogenous catalysis?
Which from following techniques is used for preliminary confirmation of nanoparticles?
Which of the following gases is readily adsorbed by solid adsorbent?
Which of the following ion has greater coagulating power for negatively charged sol?
Which from following catalyst is used in decomposition of $$\mathrm{KCl}_3$$ ?
Identify FALSE statement regarding adsorption from following.
Which from following nanomaterial has one dimension less than $$100 \mathrm{~nm}$$ ?
Which from following nanoparticle catalysts is used in photocatalysis?
Which from following phenomena is inversely proportional with adsorption?
Which of the following is positively charged sol?
Identify physisorption from following.
Identify the catalyst (A) used in following reaction.
$$\mathrm{CO}+\mathrm{H}_2 \mathrm{O} \stackrel{\mathrm{A}}{\rightleftharpoons} \mathrm{CO}_2+\mathrm{H}_2$$
Identify the last step in wet chemical synthesis of nanomaterial.
Which of the following is character of lyophilic colloid?
Which of the following colloids is NOT a gel?
What type of information is collected using scanning electron microscopy?
What type of following phenomena is NOT exhibited by adsorption?
Which of the following is a first step in mechanism of heterogenous catalysis?
Which of the following statements is true for adsorption?
What is the value of intercept on $$y$$-axis when $$\log \frac{x}{m}$$ is plotted against $$\log P$$ in Freundlich isotherm?
Identify the correct decreasing order of precipitation power of flocculating ion added, from following.
Which among the following is true for chemisorption?
Which among the following is NOT an example of one-dimensional nanostructure?
Which among the following gases is adsorbed to greater extent at similar conditions of temperature and pressure if the adsorbent remains same?
Which of following statements is correct for physisorption?
Identify negatively charged sol from following.
Which among the following is a multi-molecular colloid?
Which of the following is multimolecular colloid?