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## Organic Reactions

1.
What temperature and pressure conditions are required to carry out the polymerization of ethylene?
1. Temperature (463 K to 483 K) and Pressure (1500 atm.)
2. Temperature (450 K to 480 K) and Pressure (1200 atm.)
3. Temperature (400 K to 430 K) and Pressure (1300 atm.)
4. Temperature (420 K to 440 K) and Pressure (1600 atm.)

2.
Complete the following chemical reaction:

$H - C -= C - H + Cl_2 rarr$
1. $Cl-CH-CH-Cl$
2. $Cl-CH_2-CH_2-Cl$
3. $Cl-C-=C-Cl$
4. $(Cl)_2-CH_2$
3.
Which of the following compounds is formed when acetylene is passed through red hot iron or quartz tube at 873 K?
1. Benzene
2. Ethylene
3. Napthalene
4. Toluene

4.
What is the product of the following chemical reaction?

$CH_2=CH_2 + HBr rarr$
1. $CH_3-CH_2-Br$
2. $CH_3-CH=CH-Br$
3. $CH_2=CH-Br$
4. $CH_3-CH=CH-CH_2-Br$
5.
What is the temperature range in which an alcohol must be heated with concentrated sulfuric acid to form the corresponding alkene?
1. 443 K to 453 K
2. 425 K to 439 K
3. 415 K to 430 K
4. 420 K to 470 K

6.
Which of the following conversions is an example of substitution reaction?
1. Acetylene $rarr$ Ethane
2. Sodium acetate $rarr$ Methane
3. Propylene $rarr$ Propane
4. Ethane $rarr$ Chloroethane
7.
Which of the following reactants are required to produce ethyl butanoate?
1. 1-butanol and ethanoic acid
2. 1-ethanol and ethanoic acid
3. 1-ethanol and butanoic acid
4. 2-butanol and butanoic acid

8.
Which of the following functional groups acts as a deactivating, meta group on benzene rings?
1. $-NO_2 group$
2. $-NH_2 group$
3. $-C_6H_5 group$
4. $-OH group$
9.
Alkynes on catalytic hydrogenation first give                               , which on further reaction give                     .

10.
Name a catalyst that could be used in the hydrogenation of 1-pentene to form pentane.

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