Day 222: MHT-CET Chemistry

1. A.
   S > Se > Te > Po
2. B.
   Te > Po > S > Se
3. C.
   S > Te > Po > Se
4. D.
   Te > Po > Se > S

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1. A.
   Anhydrous $\mathrm{AlCl_3}$
2. B.
   Anhydrous $\mathrm{FeCl_3}$
3. C.
   $\mathrm{NaNO_2}$
4. D.
   Alcoholic KOH

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1. A.
   $1$
2. B.
   $3$
3. C.
   $2$
4. D.
   $0$

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1. A.
   The droplets in emulsions are often negatively charged and can be precipitated by electrolysis.
2. B.
   Emulsions exhibit Brownian movement and Tyndall effect.
3. C.
   The two liquids in emulsion can not be seperated by heating, freezing etc.
4. D.
   The emulsions are stabilised by addition of third component called emulsifying agent.

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1. A.
   These are ortho directing compounds towards electrophilic aromatic substitution.
2. B.
   These are meta directing compounds towards electrophilic aromatic substitution.
3. C.
   These are para directing compounds towards electrophilic aromatic substitution.
4. D.
   These are ortho and para directing compounds towards electrophilic aromatic substitution.

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