NEET Test Series-2021 to 2022/NEET Chemistry MCQS - Surface Chemistry Sample Test,Sample questions

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Question: 
 If the dispersed phase is a liquid and the dispersion medium is solid, the colloid is known as

1.foam

2.sol

3.emulsion

4.gel

Posted Date:-2021-03-08 07:01:39

Question: 
 The movement of colloidal particles towards the oppositely charged electrodes on passing electric current is known as

1.Tyndall effect

2.Cataphoresis

3.Brownian movement

4.None of these

Posted Date:-2021-03-08 07:01:39

Question: 
An emulsifier is a substance which

1.stabilizes the emulsion

2.coagulates the emulsion

3.retards the dispersion of liquid in liquid

4.causes homogenesis of emulsion

Posted Date:-2021-03-08 07:01:39

Question: 
At 15oC out of H2, CH4, CO2, NH3, which gas will be adsorbed maximum by charcoal?

1.H2

2.CH4

3.CO2

4.NH3

Posted Date:-2021-03-08 07:01:39

Question: 
Homogeneous catalysis does mean

1.Reactants and goods have to be at the same level

2.Catalyst and reactants must be in the same phase

3.The reaction mixture must be formed homogeneously during

4.The reaction mixture distribution must be homogeneous

Posted Date:-2021-03-08 07:01:39

Question: 
 Which one of the following is an example of adsorption?

1.ammonia in contact with water

2.anhydrous CaCl2 with water

3.silica gel in contact with water vapours

4.all of these

Posted Date:-2021-03-08 07:01:39

Question: 
The process of separating a crystalloid, from a colloid by filtration is called

1.emulsification

2.dialysis

3.coagulation

4.Peptization

Posted Date:-2021-03-08 07:01:39

Question: 
The volume of gases H2, CH4, CO2 and NH3 adsorbed by 1 gm charcoal at 293 K can be given in the order?

1. CH4 > CO2 > NH3 > H2

2.CO2 > NH3 > H2 > CH4

3. NH3 > CO2 > H2 > CH4

4. NH3 > CO2 > CH4 > H2

Posted Date:-2021-03-08 07:01:39

Question: 
Which of the following colloids are solvent hating?

1.lyophilic

2.lyophobic

3.hydrophilic

4.none of these

Posted Date:-2021-03-08 07:01:39

Question: 
Which of the following kinds of catalysis can be explained by the adsorption theory?

1.enzyme catalysis

2.homogeneous catalysis

3.acid base catalysis

4.heterogeneous catalysis

Posted Date:-2021-03-08 07:01:39

Posted on by R4R Team

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