Tag: rocks and minerals

Quizzes (5) Questions (347)

Questions Related to rocks and minerals

Multiple choice chemistry rocks and minerals coal petroleum non-renewable sources of energy

The dead aquatic organisms that were buried under the sand and clay of the sea bed, were converted to petroleum owing to:

  1. absence of air

  2. high temperature

  3. high pressure

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The dead aquatic organisms that were buried under the sand and clay of the seabed, were converted to petroleum owing to the absence of air, high temperature, and high pressure.

Multiple choice chemistry rocks and minerals coal petroleum non-renewable sources of energy

Petroleum is formed under the earth's crust by chemical changes in:

  1. Vegetable matter

  2. Inorganic matter

  3. Animal matter

  4. Both vegetable and animal matter
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Petroleum which is also known as crude oil  is a fossil fuel that was formed from the remains of  marine organisms and plant wastes (vegetable).

Millions of years ago, algae and plants lived in shallow areas  seas. After dying and sinking to the seabottom, the organic material mixed with other sediments and was buried. Over millions of years under high pressure and high temperature, the remains of these organisms transformed into what we know today as fossil fuels by the various chemical process . Coal, natural gas, and petroleum are all fossil fuels that formed under similar conditions.

Hence option D is corrrect.

Multiple choice chemistry rocks and minerals coal petroleum non-renewable sources of energy

Arrange the following in a proper sequence for the extraction of petroleum.
(a) Processing of crude oil to remove heavy oil.
(b) Heating of the crude oil containing pure mixture of hydrocarbons over a specific range of temperature.
(c) Separation of constituents by fractional distillation.
(d) Purification of crude oil containing salt water.
(e) Drilling of the oil through the various layers under the earth's surface.

  1. ebadc

  2. ecabd

  3. eadbc

  4. eabcd
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The correct sequence is :
(i) Drilling of the oil through the various layers under the earth's surface.
(ii) Processing of crude oil to remove heavy oil.
(iii) Purification of crude oil containing salt water.
(iv) Heating of the crude oil containing pure mixture of hydrocarbons over a specific range of temperature.
(v) Separation of constituents by fractional distillation.

Multiple choice chemistry rocks and minerals coal petroleum non-renewable sources of energy

Which of the following statements is correct?

  1. LPG is a mixture of butane and propane.

  2. LPG is liquefied methane.

  3. LPG is liquefied propane.

  4. LPG is a mixture of methane and ethane.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Liquified petroleum gas or liquid petroleum gas (LPG or LP gas), also referred to as simply propane or butane are flammable mixtures of hydrocarbon gases used as fuel in heating appliances, cooking equipments and vehicles. LPG is a mixture of mainly liquefied butane and propane.
Multiple choice chemistry rocks and minerals carbon cycling mineral coal coal and its products

Coal found in deeper strata of earth is:

  1. good

  2. bad

  3. can't say

  4. both A and B
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

It has been seen that the deeper the coal found, the better quality it is. Because, the deeper we go, the temperature and pressure increases much and hence the quality of coal also increases.