Tag: rocks and minerals

Questions Related to rocks and minerals

LPG is ______________________.

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

  1. liquified petroleum gas

  2. liquified paraffin gas

  3. liquid petroleum gas

  4. liquid paraffin gas

Show answer
Correct Option: A
Explanation:

LPG is liquified petroleum gas used for cooking purpose.

Main component of C.N.G is

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

  1. butane

  2. methane

  3. hydrogen

  4. coal gas

Show answer
Correct Option: B
Explanation:

Main component of CNG is methane (the simplest alkane). the other components present are:

  • ethane
  • propane
  • nitrogen
  • carbon dioxide
  • hydrogen sulphide
  • traces of water

Generally natural gas is associated with the following

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

  1. oil fields

  2. coal fields

  3. a and b

  4. minerals

Show answer
Correct Option: C
Explanation:

Natural gas is found in deep underground rock formations in coal beds and in oil beds.

By undergoing what process, chemical fuel releases its energy?

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

  1. Reduction

  2. Oxidation

  3. Electrolysis

  4. Redox reaction

Show answer
Correct Option: B
Explanation:

Chemical fuels react with oxygen (combustion) and releases their energy.

Choose the odd one out from the following and give reason for your choice.

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

  1. Natural Gas

  2. Sun

  3. Biomass

  4. Wind

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Correct Option: A
Explanation:

Sun, Biomass, Wind are renewable sources which can be replenished within human lifeitme. Whereas natural gas is non-renewable source.

LPG is ___________ .

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

  1. Liquefied petroleum gas

  2. Low petroleum gas

  3. Liquid pressure gas

  4. None of these

Show answer
Correct Option: A
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.

Ethyl bromide reacts with sodium lead alloy to form?

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

  1. Tetraethyl lead

  2. Ethyl sodium

  3. Ethane

  4. Wthene

Show answer
Correct Option: A
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.

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

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

  1. Methyl mercaptan

  2. Propyl mercaptan

  3. Ethyl mercaptan

  4. n-butyl mercaptan

Show answer
Correct Option: C
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.

Find odd one out according to the presence of Methane.

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

  1. LPG

  2. LNG

  3. CNG

  4. Biogas

Show answer
Correct Option: A
Explanation:

Liquified Natural Gas, compresses natural gas, Biogas all comprises of methane but liquified petroleum gas does not have any trace of methane.

In LPG cylinder, the gas filled is in the liquefied state.

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

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

LPG is liquefied petroleum gas. Its boiling point is below the room temperature and it evaporates quickly at normal temperature and pressures and supplied in pressurized steel vessels in liquid form.