Question
The amorphous allotropy of carbon that contains the least amount of carbon is
- Sugar charcoal
- Wood charcoal
- Bone charcoal
- Gas carbon
Hint:
This coal is obtained from burning bones.
The correct answer is: Bone charcoal
The correct option is c)Bone charcoal.
Bone char is a type of porous, black, granular material composed of charred animal bones. Contains 57-80% tricalcium phosphate, 6-10% carbonate, 7-10%. Bone char is a porous, black, granular substance formed by charring animal bones.
Related Questions to study
Why is the wood charcoal used in the water filters and gas masks?
1. It is a good adsorbent of gases, liquids, and solids.
2. It is a very good reducing agent.
3. It burns at a very low temperature.
4. It is a soft, black, and porous liquid.
Why is the wood charcoal used in the water filters and gas masks?
1. It is a good adsorbent of gases, liquids, and solids.
2. It is a very good reducing agent.
3. It burns at a very low temperature.
4. It is a soft, black, and porous liquid.
Which of the following compounds is not carbon's amorphous form?
Which of the following compounds is not carbon's amorphous form?
Which of the following picture does not depict the uses of wood charcoal?
Which of the following picture does not depict the uses of wood charcoal?
Wood charcoal acts as
Wood charcoal acts as
The substance which is present in the highest amount in the ivory black is
The substance which is present in the highest amount in the ivory black is
Which of the following substance contain almost 99% of carbon?
Which of the following substance contain almost 99% of carbon?
Sugar charcoal can also be prepared by the following.
The correct option is d)By dehydration of cane sugar.
Sugar charcoal is made by destructive distillation of sugar cane sugar. It is also made by dehydrating sugar in the presence of concentrated sulfuric acid. Sulfuric acid is a dehydrating agent, so it absorbs water from the sugar, leaving behind a black carbon residue.
Sugar charcoal can also be prepared by the following.
The correct option is d)By dehydration of cane sugar.
Sugar charcoal is made by destructive distillation of sugar cane sugar. It is also made by dehydrating sugar in the presence of concentrated sulfuric acid. Sulfuric acid is a dehydrating agent, so it absorbs water from the sugar, leaving behind a black carbon residue.
Identify the substance known as Ivory black from the following.
Identify the substance known as Ivory black from the following.
Which of the following substance/s reacts with steam or oxides of metals?
Which of the following substance/s reacts with steam or oxides of metals?
Which of the following forms of carbon occur in nature?
Which of the following forms of carbon occur in nature?
Fuels are those substances which:
Fuels are those substances which:
State whether the following statements are correct or incorrect.
(i) The amorphous forms of carbon contain 99 % of carbon.
(ii) The process of gradual conversion of vegetable matter into carbon-rich substances is called carbonization.
(iii) Coal tar is used as a smokeless fuel.
State whether the following statements are correct or incorrect.
(i) The amorphous forms of carbon contain 99 % of carbon.
(ii) The process of gradual conversion of vegetable matter into carbon-rich substances is called carbonization.
(iii) Coal tar is used as a smokeless fuel.
Read the following paragraph carefully.
The huge forest grows around 300 million years ago covering most of the portion of the earth. Due to the extreme pressure of the earth and high temperature, and the absence of air, the vegetation dies and forms X . This X is compressed between sediment layers to form Y. Further compression forms Z and W, eventually anthracites are formed.
Identify the compounds W, X, Y and Z in the above paragraph:
Read the following paragraph carefully.
The huge forest grows around 300 million years ago covering most of the portion of the earth. Due to the extreme pressure of the earth and high temperature, and the absence of air, the vegetation dies and forms X . This X is compressed between sediment layers to form Y. Further compression forms Z and W, eventually anthracites are formed.
Identify the compounds W, X, Y and Z in the above paragraph:
Match the statements of Column A with those of Column B.
Match the statements of Column A with those of Column B.
Which of the substances are not used as a fuel?
The correct option is c)Lignite.
Due to its high volatile content, lignite is more easily converted into gas and liquid petroleum products than high-grade coal. Unfortunately, it has a high moisture content and is prone to spontaneous combustion, which can cause problems during transportation and storage.
Which of the substances are not used as a fuel?
The correct option is c)Lignite.
Due to its high volatile content, lignite is more easily converted into gas and liquid petroleum products than high-grade coal. Unfortunately, it has a high moisture content and is prone to spontaneous combustion, which can cause problems during transportation and storage.
