10th Class Chemistry Chapter 3 Organic Chemistry Short Question Answer

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10th Class Chemistry Chapter 3 Organic Chemistry Short Question Answer

What is molecular formula? Also give an example

What is molecular formula? Also give an example

Answer : The formula which represents the actual number of atoms in one molecule of organic compound is called molecular formula.
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What is petroleum?

What is petroleum?

Answer : Petroleum is a dark brownish or greenish black coloured viscous liquid.
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Differentiate open chain and closed chain compounds.

Differentiate open chain and closed chain compounds.

Answer : Open chain compound: Open chain compounds are those in which the end carbon are not joined with each other in this way they form a long chain of carbon atomH3C -CH2 -CH2 -CH3
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How many types of chemical formula of organic compound?

How many types of chemical formula of organic compound?

Answer : There are four typeschemical formula of organic compound
1: Molecular formula
2: Condensed formula
3: Dot-cross formula
4: Structural formula
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Which ability of carbon is responsible for diversity and magnitude of organic compounds?

Which ability of carbon is responsible for diversity and magnitude of organic compounds?

Answer : There are four mains reasons of existence of large number
1: Catenation
2: Isomerism
3: Strength of covalent bond
4: Multiple bonding
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What are organic compound?

What are organic compound?

Answer : Organic chemistry are hydrocarbon and their derivatives in which covalently bonded carbon is an essential constituent.
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CNG stands for what?

CNG stands for what?

Answer : CNG stands for compressed natural gas.
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Give the general formula of Alkane.

Give the general formula of Alkane.

Answer : The general formula of Alkane is CnH2n+2
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What is coal gas?

What is coal gas?

Answer : It is a mixture of hydrogen, methane and carbon monoxide.
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Define organic chemistry.

Define organic chemistry.

Answer : Organic chemistry is the branch of chemistry which we study about macromolecules in living organisms like carbohydrates, proteins, lipids etc.
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Define functional group.

Define functional group.

Answer : An atom or group of atoms or presence of double or triple bond which determines the characteristic properties of an organic compound known as functional group.
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Define isomerism?

Define isomerism?

Answer : The compounds are said to be isomers if they have the same molecular formula by different arrangement of atoms in their molecules or different structural formula and phenomenon is called isomerism.
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What is coke? Foe what purpose used?

What is coke? Foe what purpose used?

Answer : Coke is 98% carbon. It is left behind as residue of coal. It is mainly used as a reducing agent in the extraction of metals especially iron. It is also used as fuel
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Define functional group?

Define functional group?

Answer : An atom or group of atoms or presence of double or triple bond which determines the characteristic properties of an organic compound known as functional group.
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Name the gases which are found in coal gas?

Name the gases which are found in coal gas?

Answer : The gases which are found in coal gas are hydrogen, methane, carbon monoxide.
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What is ester group? Write formula of ethyl acetate?

What is ester group? Write formula of ethyl acetate?

Answer : Organic compounds consisting of RCOOR functional group are called esters. The general formula of ether is R-C-OR R and R are alkyl gropes. They may be same or different such as.
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What is molecular formula? Also give an example?

What is molecular formula? Also give an example?

Answer : The formula which represent s the actual number of atoms in one molecule of organic compound is called molecular formula. Example: Butane.
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Our existence owe to organic compounds, comment?

Our existence owe to organic compounds, comment?

Answer : Our existence owe to organic compounds because these compounds are part of everything from food we eat to the various items we use in daily life to fulfill our needs.
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What is COKE? For what purpose used?

What is COKE? For what purpose used?

Answer : Coke is 98% carbon. It is left behind as residue of coal.It is mainly used as a reducing agent in the extraction of metals especially iron. It is also used as fuel.
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Why the melting and boiling points of organic compounds are low?

Why the melting and boiling points of organic compounds are low?

Answer : Organic compounds have low melting or boiling points due to presence of covalent bond which is weaker than ionic bond.
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Define organic chemistry?

Define organic chemistry?

Answer : Organic chemistry is the branch of chemistry in which we study about macromolecules in living organisms lime carbohydrates, proteins, lipids etc.
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Give use of organic compounds in medicine?

Give use of organic compounds in medicine?

Answer : A large number of organic compounds are used as medicines by us. Most life saving medicines are synthesized in laboratories.
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What is Ammonia Cal liquor?

What is Ammonia Cal liquor?

Answer : It is a solution of ammonia gas in water. It is used to prepare nitrogenous fertilizer.
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Why and how carbon complete its octet?

Why and how carbon complete its octet?

Answer : Carbon gets minimum energy and maximum stability by sharing its four valence electrons with other atoms. In this way it completes its octet.
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What are organic compounds?

What are organic compounds?

Answer : Organic chemistry are hydrocarbon and their derivatives in which covalently bonded carbon is an essential constituent.
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How alkyl radical formed? Explain with example?

How alkyl radical formed? Explain with example?

Answer : Alkyl radicals are derivatives of alkanes. They are formed by the removal of one of the hydrogen atom of an alkane and are represented by a letter ‘R’. Their names is written by replacing ‘ane’ of alkane with ‘yl’.
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Define functional group with an example:

Define functional group with an example:

Answer : An atom or group of atoms or presence of double or triple bond which determines the characteristic properties of an organic compound is known as the functional group. Example-OH group is the functional group of alcohols, which fives charactristics properties of alcohols.
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What is coal gas?

What is coal gas?

Answer : It is a mixture of hydrogen, methane and carbon monoxide.
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What is the importance of natural gas?

What is the importance of natural gas?

Answer : This is because intermolecular forces between the molecules are weak
Natural gas is used as fuel in homes as well as fuel in homes as well as in industries. It is used as fuel in automobiles as compressed natural gas (CNG). Natural gas is also used to make carbon black and fertilizer.
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What are heterocyclic compound.

What are heterocyclic compound.

Answer : Heterocyclic compounds that contain one or more atoms other than that of carbon atoms in their rings are called heterocyclic compounds.
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