Tag: petroleum

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Multiple choice chemistry petrochemicals and polymers petroleum properties of alkanes petroleum and natural gas rocks and minerals

The final product in the following reaction can be used as, $4CH _3-CH _2-Cl+4Na+Pb \rightarrow$

  1. anaesthatic

  2. narcotics

  3. analgesic

  4. antiknocking agent
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • The final product of this reaction is $(CH _3CH _2) _4Pb$ [tetraethyl lead (TEL)].
$4CH _3-CH _2-Cl + 4Na + Pb \rightarrow (CH _3CH _2) _4Pb$
It is also used as an antiknocking agent in fuels for automobiles.

Multiple choice chemistry rocks and minerals petroleum properties of alkanes petroleum and natural gas

LPG is ___________ .

  1. Liquefied petroleum gas

  2. Low petroleum gas

  3. Liquid pressure gas

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Liquefied petroleum gas or it is also called liquid petroleum gas abbreviated as LPG. 

Also referred to as propane or butane, are flammable mixtures of hydrocarbon gases used as fuel in heating appliances and cooking equipment.

Hence, option A is correct.

Multiple choice chemistry rocks and minerals petroleum properties of alkanes petroleum and natural gas

Ethyl bromide reacts with sodium lead alloy to form?

  1. Tetraethyl lead

  2. Ethyl sodium

  3. Ethane

  4. Wthene
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When we treat ethyl bromide with lead sodium alloy we get tetra ethyl lead [TEL]


$4NaPb+4CH _3CH _2Br\longrightarrow \overset {\uparrow Tetraethyllead}{(CH _3CH _2) _4Pb}+4NaCl+3Pb$

TEL is used to increase their efficiency and performance.

Multiple choice chemistry rocks and minerals petroleum properties of alkanes petroleum and natural gas

Identify the chemical which is used to detect leakage of LPG ;

  1. Methyl mercaptan

  2. Propyl mercaptan

  3. Ethyl mercaptan

  4. n-butyl mercaptan
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ethyl mercaptan is added to gas, which possesses that strong odour of rotten cabbages. The smell helps us detect where there is a leak, which actually makes a lot of sense from safety and security perspective.