Charcoal and Carbon Compounds
Learn about different types of charcoal (wood, sugar, bone), their properties, preparation methods, and reactions
Questions
Wood charocal is used in gas masks because it:
- has good smell
- dissolves poisonous gases
- adsorbs poisonous gases
- reacts with poisonous gases
In the preparation of wood charcoal, liquid pyroligneous acid is obtained. It consists of :
- acetone
- methanol
- acetic acid
- vinegar
In a test tube, a cotton plug was placed and a few drops of bromine liquid were added to it and then a piece of wood charcoal was added to the test tube. Which of the following are observed?
- Initially the test tube is filled with brown vapours
- Activated wood charcoal absorbs gases
- Brown vapours are retained in the test tube
- Brown vapours are formed because of wood charcoal
$C _{12}H _{22}O _{11}\xrightarrow{Conc. H _2SO _4} 12C+11H _2O$
Which of the following is obtained by the above reaction?
- Animal charcoal
- Sugar charcoal
- Coke
- Wood charcoal
When superheated steam is passed through white-hot wood charcoal, it gets reduced to a mixture of X and Y and it is named as Z. Identify the mixture Z.
- Producer gas
- Water gas
- Coal gas
- Soda water
When superheated steam is passed through white-hot wood charcoal, it gets reduced to a mixture of X and Y and it is named as Z. Identify Y
- $CO _2$
- $SO _2$
- $H _2$
- $NO _2$
Bone charcoal is prepared by destructive distillation of bones.
- True
- False
Sugar charcoal is prepared by pouring water on sugar syrup.
- True
- False
When super heated steam is passed through white hot wood charcoal, it gets reduced to a mixture of $X, Y$ and this reaction is named as $Z$. Identify $X$.
- $N{O} _{2}$
- $CO$
- $S{O} _{2}$
- $C{O} _{2}$
In a test tube, a cotton plug was placed and a few drops of bromine liquid were added to it and then a piece of wood charcoal was added to the test tube. Which of the following are observed?
- Initially the test tube is filled with brown vapours
- Activated wood charcoal absorbs gases
- Brown vapours are retained in the test tube
- Brown vapours are formed because of wood charcoal
Process of conversion of wood into coal by biochemical process, taking over millions of years is called:
- catenation
- carbonation
- pyrolysis
- destructive distillation
When super heated steam is passed through white hot wood charcoal, it gets reduced to a mixture of $X, Y$ and this reaction is named as $Z$. Identify $Y$.
- $C{O} _{2}$
- $S{O} _{2}$
- ${H} _{2}$
- $N{O} _{2}$
When super heated steam is passed through red hot wood charcoal, it gets reduced to a mixture of $X$ and $Y$ and this mixture is named as $Z$. Identify the mixture $Z$.
- Producer gas
- Water gas
- Coal gas
- Soda water
${ C } _{ 12 }{ H } _{ 22 }{ O } _{ 11 }\xrightarrow { \quad \quad Conc.{ H } _{ 2 }S{ O } _{ 4 }\quad \quad } 12C+11{ H } _{ 2 }O$
Which of the following is obtained by the above reaction?
- Animal charcoal
- Sugar charcoal
- Coke
- Wood charcoal
In the preparation of wood charcoal, liquid pyroligneous acid is obtained. It consists of:
- acetone
- methanol
- acetic acid
- Vinegar
An infra-red spectrum shows a broad peak at $3000$ $cm^{-1}$ and a strong peak at $1710$ $cm^{-1}$. Which substance could have produced this spectrum?
- Methyl propanoate
- Propan-$2$-ol
- Propanoic acid
- Propanone