Day 342: MHT-CET Chemistry

1. A.
   $\text{H}_2\text{O}$
2. B.
   $\text{H}_2\text{Te}$
3. C.
   $\text{H}_2\text{Se}$
4. D.
   $\text{H}_2\text{S}$

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1. A.
   As and O
2. B.
   Br and As
3. C.
   As and Br
4. D.
   Br and O

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1. A.
   125 kJ
2. B.
   -125 kJ
3. C.
   250 kJ
4. D.
   -250 kJ

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1. A.
   sp
2. B.
   dsp²
3. C.
   sp²
4. D.
   sp³

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1. A.
   It is good to use the technique of protection and deprotection of functional group in organic synthesis.
2. B.
   Use of chemicals derived from plant resource is better than crude oil.
3. C.
   Use of biodegradable pesticides is advantageous.
4. D.
   Use of critical CO2 as solvent is better than organic solvents.

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