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NEET Previous Papers
20 followers study24x7 10 Sep 2021 02:35 PM study24x7 study24x7

Smoke is an example of #NTA #NEET #NEETquestion #mcq A

Gas dispersed in liquid

B

Gas dispersed in solid

C

Solid dispersed in gas

D

Solid dispersed in solid

NEET / Medical
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  • Dev kumar
    • Smoke is an example of solid aerosol in which dispersed phase is solid and dispersion medium is gas.
    Like
    Reply 10 Sep 2021 02:36 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:34 PM study24x7 study24x7

    The stability of lyophilic colloids is due to #NTA #NEET #NEETquestion #mcq <...

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    A

    Charge on their particles

    B

    A layer of dispersion medium on their particles

    C

    The smaller size of their particles

    D

    The large size of their particles

    NEET / Medical
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  • Dev kumar
    • The stability of lyophilic as well as lyophobic colloids is due to presence of charge on the particles.
    Like
    Reply 10 Sep 2021 02:36 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:34 PM study24x7 study24x7

    Purification of colloids is done by the process of #NTA #NEET #NEETquestion #...

    See more

    A

    Electrophoresis

    B

    Electrodispersion

    C

    Peptization

    D

    Ultra-filteration

    NEET / Medical
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  • Dev kumar
    • In purification separation of colloids from crystalloids is done by the process of ultra-filtration.
    Like
    Reply 10 Sep 2021 02:37 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:33 PM study24x7 study24x7

    Sky looks blue due to #NTA #NEET #NEETquestion #mcq A

    Dispersion effect

    B

    Reflection

    C

    Transmission

    D

    Scattering

    NEET / Medical
    Like | 2 Comment | 1 Share
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  • Dev kumar
    • When the light passes through the atmosphere then it is subjected to the different types of molecules of the air and gases in the atmosphere. As we all know that the air is a colloidal mixture of the solid sol and the colloidal solution will make the light scatter when the light passes through it.

    See more

    Like
    Reply 10 Sep 2021 02:37 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:33 PM study24x7 study24x7

    Starch dispersed in hot water is an example of #NTA #NEET #NEETquestion #mcq ...

    See more

    A

    Emulsion

    B

    Hydrophobic sol

    C

    Lyophilic sol

    D

    Associated colloid

    NEET / Medical
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  • Dev kumar
    • Starch forms lyophilic sol when water is used as the dispersion medium. The formation of sol is accelerated by heating.
    Like
    Reply 10 Sep 2021 02:37 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:33 PM study24x7 study24x7

    Gold number is associated with #NTA #NEET #NEETquestion #mcq

    See more

    A

    Only lyophobic colloids

    B

    Only lyophilic colloids

    C

    Both lyophobic and lyophilic colloids

    D

    None of these

    NEET / Medical
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  • Dev kumar
    • Gold number is assoicated with only lyophilic colloids due to protective nature.
    Like
    Reply 10 Sep 2021 02:39 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:32 PM study24x7 study24x7

    Shape-selective catalysis is a reaction catalysed by #NTA #NEET #NEETquestion

    See more

    A

    zeolites

    B

    enzymes

    C

    platinum

    D

    Ziegler-Natta catalyst.

    NEET / Medical
    Like | 1 Comment | 1 Share
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  • Dev kumar
    • Zeolite is a most widely studied shape-selective catalyst. Shape selectivity of zeolite depends upon between 260 pm to 740 pm.
    Like
    Reply 10 Sep 2021 02:39 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:32 PM study24x7 study24x7

    Enzymes with two sites are called #NTA #NEET #NEETquestion #mcq

    See more

    A

    Apoenzyme

    B

    Holoenzyme

    C

    Allosteric enzyme

    D

    Conjugate enzyme

    NEET / Medical
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  • Dev kumar
    • Enzymes with two active sites are called allosteric enzymes. One of these sites is the catalytic site for the concerned reaction. Other site may be the site for inhibition of catalysis by enzymes.

    See more

    Like
    Reply 10 Sep 2021 02:39 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:32 PM study24x7 study24x7

    Noble gases are adsorbed by #NTA #NEET #NEETquestion #mcq A

    Anhydrous calcium chloride

    B

    Ferric hydroxide

    C

    Conc. H2SO4

    D

    Activated coconut charcol

    NEET / Medical
    Like | 1 Comment | 1 Share
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  • Dev kumar
    • Noble gases are adsorbed by coconut charcoal. The adsorption of different noble gases occurs at different temperatures. Hence, charcoal is used to separate these gases.
    Like
    Reply 10 Sep 2021 02:39 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:31 PM study24x7 study24x7

    Adsorption is multilayer in the case of #NTA #NEET #NEETquestion #mcq

    See more

    A

    Physical adsorption

    B

    Chemisorption

    C

    Both

    D

    None of both

    NEET / Medical
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  • Dev kumar
    • Physical adsorption involves multilayer adsorption
    Like
    Reply 10 Sep 2021 02:39 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:31 PM study24x7 study24x7

    The rate at which a substance reacts depends on its #NTA #NEET #NEETquestion ...

    See more

    A

    Atomic weight

    B

    Equivalent weight

    C

    Molecular weight

    D

    Active mass

    NEET / Medical
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  • Dev kumar
    • The rate at which a substance reacts depends upon its active mass as the rate of reaction is directly proportional to concentration of each reactant and product.
    Like
    Reply 10 Sep 2021 02:41 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:31 PM study24x7 study24x7

    what is the si unit of electric current #NTA #NEET #NEETquestion #mcq

    See more

    A

    Ohm

    B

    Volt

    C

    Ampere

    D

    Coulomb

    NEET / Medical
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  • Dev kumar
    • si unit of electric current is Ampere
    Like
    Reply 10 Sep 2021 02:41 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:30 PM study24x7 study24x7

    The unit of electrochemical equivalent is #NTA #NEET #NEETquestion #mcq <...

    See more

    A

    Gram

    B

    Gram/ampere

    C

    Gram/coulomb

    D

    Coulomb/gram

    NEET / Medical
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  • Dev kumar
    • Electrochemical equivalent is the mass of substance of deposited or liberated on an electrode per SI unit that is per Coulomb of charge.
    Like
    Reply 10 Sep 2021 02:42 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:30 PM study24x7 study24x7

    the equivalent weight of a certain trivalent element is 20. #NTA #NEET #NEETquestion

    See more

    A

    152

    B

    56

    C

    168

    D

    68

    NEET / Medical
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  • Dev kumar
    • Atomic mass of element= Equivalent mass of element × Valency=20×3=60g/mol \ The oxide can be represented as E2 O3 where E represents element. The molecular weight of oxide is 2(60)+3(16)=168g/mol

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    Like
    Reply 10 Sep 2021 02:42 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:30 PM study24x7 study24x7

    Which of the following does not conduct electricity? #NTA #NEET #NEETquestion

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    A

    Fused NaCl

    B

    Solid NaCl

    C

    Brine solution

    D

    Copper

    NEET / Medical
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  • Dev kumar
    • Solid NaCl does not conduct electricity due to absence of free ions.
    Like
    Reply 10 Sep 2021 02:42 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 01:42 PM study24x7 study24x7

    In the electrolytic cell flow of electrons is from #NTA #NEET #NEETquestion #...

    See more

    A

    Cathode to anode in solution

    B

    Cathode to anode through external supply

    C

    Cathode to anode through internal supply

    D

    Anode to cathode through internal supply

    NEET / Medical
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  • Dev kumar
    • In the electrolytic cell, the electrons flow from cathode to anode through internal supply.
    Like
    Reply 10 Sep 2021 02:42 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 01:41 PM study24x7 study24x7

    electrolysis involves oxidation and reduction respectively at #NTA #NEET #NEETquestion

    See more

    A

    Anode and cathode

    B

    Cathode and anode

    C

    At both the electrodes

    D

    None of the above

    NEET / Medical
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  • Dev kumar
    • In electrolysis process oxidation occurs at anode and reduction occurs at cathode.
    Like
    Reply 10 Sep 2021 02:42 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 01:40 PM study24x7 study24x7

    Which of the following is not a non electrolyte #NTA #NEET #NEETquestion #mcq...

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    A

    Acetic acid

    B

    Glucose

    C

    Ethanol

    D

    Urea

    NEET / Medical
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  • Dev kumar
    • Correct answer is Acetic Acid Electrolytic substances are classified as strong or weak according to how readily they dissociate into conducting ions.
    Like
    Reply 10 Sep 2021 02:45 PM
  • Tejeshwar Ahirwar
    • Yeh question glt hai
    Like
    Reply 10 Sep 2021 01:41 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 01:40 PM study24x7 study24x7

    which one of the following is a good conductor of electricity #NTA #NEET #NEETquestion

    See more

    A

    Diamond

    B

    Graphite

    C

    Both A and B

    D

    None of  the above

    NEET / Medical
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  • Dev kumar
    • Diamond and graphite are allotropes of carbon. Graphite has carbon molecules held together by weak van der Waal's forces of attraction and they have loosely bound electrons which are responsible for conducting electricity.

    See more

    Like
    Reply 10 Sep 2021 02:45 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 01:39 PM study24x7 study24x7

    When a molten ionic hydride is electrolysed #NTA #NEET #NEETquestion #mcq

    See more

    A

    Hydrogen is liberated at the cathode

    B

    Hydrogen is liberated at the anode

    C

    There is no reaction

    D

    − H ions produced migrate to the cathode

    NEET / Medical
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  • Dev kumar
    • hydrogen is liberate at the anode On electrolysis molten ionic hydride liberate H2 gas at the anode.
    Like
    Reply 10 Sep 2021 02:46 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:34 PM study24x7 study24x7

    The stability of lyophilic colloids is due to #NTA #NEET #NEETquestion #mcq <...

    See more

    A

    Charge on their particles

    B

    A layer of dispersion medium on their particles

    C

    The smaller size of their particles

    D

    The large size of their particles

    NEET / Medical
    Like | 1 Comment | 1 Share
    study24x7
    Write a comment
  • Dev kumar
    • The stability of lyophilic as well as lyophobic colloids is due to presence of charge on the particles.
    Like
    Reply 10 Sep 2021 02:36 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:34 PM study24x7 study24x7

    Purification of colloids is done by the process of #NTA #NEET #NEETquestion #...

    See more

    A

    Electrophoresis

    B

    Electrodispersion

    C

    Peptization

    D

    Ultra-filteration

    NEET / Medical
    Like | 2 Comment | 1 Share
    study24x7
    Write a comment
  • Dev kumar
    • In purification separation of colloids from crystalloids is done by the process of ultra-filtration.
    Like
    Reply 10 Sep 2021 02:37 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:33 PM study24x7 study24x7

    Sky looks blue due to #NTA #NEET #NEETquestion #mcq A

    Dispersion effect

    B

    Reflection

    C

    Transmission

    D

    Scattering

    NEET / Medical
    Like | 2 Comment | 1 Share
    study24x7
    Write a comment
  • Dev kumar
    • When the light passes through the atmosphere then it is subjected to the different types of molecules of the air and gases in the atmosphere. As we all know that the air is a colloidal mixture of the solid sol and the colloidal solution will make the light scatter when the light passes through it.

    See more

    Like
    Reply 10 Sep 2021 02:37 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:33 PM study24x7 study24x7

    Starch dispersed in hot water is an example of #NTA #NEET #NEETquestion #mcq ...

    See more

    A

    Emulsion

    B

    Hydrophobic sol

    C

    Lyophilic sol

    D

    Associated colloid

    NEET / Medical
    Like | 1 Comment | 1 Share
    study24x7
    Write a comment
  • Dev kumar
    • Starch forms lyophilic sol when water is used as the dispersion medium. The formation of sol is accelerated by heating.
    Like
    Reply 10 Sep 2021 02:37 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:33 PM study24x7 study24x7

    Gold number is associated with #NTA #NEET #NEETquestion #mcq

    See more

    A

    Only lyophobic colloids

    B

    Only lyophilic colloids

    C

    Both lyophobic and lyophilic colloids

    D

    None of these

    NEET / Medical
    Like | 3 Comment | 1 Share
    study24x7
    Write a comment
  • Dev kumar
    • Gold number is assoicated with only lyophilic colloids due to protective nature.
    Like
    Reply 10 Sep 2021 02:39 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:32 PM study24x7 study24x7

    Shape-selective catalysis is a reaction catalysed by #NTA #NEET #NEETquestion

    See more

    A

    zeolites

    B

    enzymes

    C

    platinum

    D

    Ziegler-Natta catalyst.

    NEET / Medical
    Like | 1 Comment | 1 Share
    study24x7
    Write a comment
  • Dev kumar
    • Zeolite is a most widely studied shape-selective catalyst. Shape selectivity of zeolite depends upon between 260 pm to 740 pm.
    Like
    Reply 10 Sep 2021 02:39 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:32 PM study24x7 study24x7

    Enzymes with two sites are called #NTA #NEET #NEETquestion #mcq

    See more

    A

    Apoenzyme

    B

    Holoenzyme

    C

    Allosteric enzyme

    D

    Conjugate enzyme

    NEET / Medical
    Like | 1 Comment | 1 Share
    study24x7
    Write a comment
  • Dev kumar
    • Enzymes with two active sites are called allosteric enzymes. One of these sites is the catalytic site for the concerned reaction. Other site may be the site for inhibition of catalysis by enzymes.

    See more

    Like
    Reply 10 Sep 2021 02:39 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:32 PM study24x7 study24x7

    Noble gases are adsorbed by #NTA #NEET #NEETquestion #mcq A

    Anhydrous calcium chloride

    B

    Ferric hydroxide

    C

    Conc. H2SO4

    D

    Activated coconut charcol

    NEET / Medical
    Like | 1 Comment | 1 Share
    study24x7
    Write a comment
  • Dev kumar
    • Noble gases are adsorbed by coconut charcoal. The adsorption of different noble gases occurs at different temperatures. Hence, charcoal is used to separate these gases.
    Like
    Reply 10 Sep 2021 02:39 PM
    NEET Previous Papers
    20 followers study24x7 10 Sep 2021 02:31 PM study24x7 study24x7

    Adsorption is multilayer in the case of #NTA #NEET #NEETquestion #mcq

    See more

    A

    Physical adsorption

    B

    Chemisorption

    C

    Both

    D

    None of both

    NEET / Medical
    Like | 1 Comment | 1 Share
    study24x7
    Write a comment
  • Dev kumar
    • Physical adsorption involves multilayer adsorption
    Like
    Reply 10 Sep 2021 02:39 PM
    About

    The National Eligibility cum Entrance Test (NEET), formerly the All India Pre-Medical Test (AIPMT) is an entrance examination in India for students who wish to study undergraduate and postgraduate med...
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