#carbon compounds
- Name two carbon compound use in day to day life Graphite in pencils is used regurally by students to write Glucose is also a carbon compund we use 2
- What is a catalyst ? Write any one reaction which is brought about by use of catalyst ? A catalyst is a substance that changes (usually increases) the rate of a chemical reaction without itself undergoing any permanent chemical... 1
- What is meant by vinegar and gasohol? What are their uses ? Vinegar is a dilute (about 5–8%) solution of acetic acid (ethanoic acid) in water; gasohol is a mixture of petrol (gasoline) and ethanol use... 1
- Give names of three natural polymers. Write the place of their occurrance and names of monomers from which they are formed. Three natural polymers are starch, cellulose and proteins. Natural polymerWhere it occursMonomer StarchStored food in plants: grains (rice,... 1
- Give names of three functional groups containing three different hetero atoms. Write name and structural formula of one example each. Three functional groups with three different heteroatoms: halo (halogen), alcohol (oxygen) and amine (nitrogen). HeteroatomFunctional groupE... 1
- Give any four functional groups containing oxygen as the heteroatom in it. Write name and structural formula of one example each. Four functional groups with oxygen as the heteroatom: alcohol, aldehyde, ketone and carboxylic acid. Functional groupExampleStructural formu... 1
- Saturated hydrocarbons are classified into three types. Write these names giving one example each Saturated hydrocarbons are of three types: straight chain, branched chain and cyclic. Straight chain hydrocarbons: carbon atoms are joined o... 1
- What causes the existance of very large number of carbon compound ? Organic compounds mean carbon compounds. Carbon is unique element in the periodic table. It has 4 valence electrons. That means each individ... 1
- Write structural formulae for the following IUPAC names. Condensed structural formulae: IUPAC nameStructural formula a. pentan-2-one mathrmCH₃-CO-CH₂-CH₂-CH₃ b. 2-chlorobutane mathrmCH₃-CHCl-CH₂-CH... 1
- Identify the type of the following reaction of carbon compounds. a. CH₃-CH₂-CH₂-OH → CH₃ -CH₂ -COOH = Oxidation reaction(acidic KMnO₄) b. CH₃ -CH₂ -CH₃ → 3CO₂ + 4H₂O = Combusion reaction c. CH₃ -CH = CH -C... 1
- Write the IUPAC names of the following structural formulae a. CH₃-CH₂-CH₂-CH₃ Answer The number of items in the longest chain :4 Parent Alkane :Butane IUPAC Name :nButane b. CH₃-CHOH-CH₃ Answer The n... 1
- Oxidant Explain the following terms with example Oxidant: The substance which gives oxygen for oxidation is called an oxidising agent or oxidant. The substance which removes hydrogen is cal... 1
- Reduction Explain the following terms with example Reduction: The addition of hydrogen to a substance is called reduction. The removal of oxygen from a substance is called reduction. For exam... 1
- Monomer Explain the following terms with example Answer: A monomer is a small, simple molecule which joins with many other identical (or similar) molecules to form a large molecule called a... 1
- Homopolymer Explain the following terms with example Homopolymer: A homopolymer is a polymer formed from same type of monomer units. For examples: Polyvinylchloride (PVC), Polyethylene(-CH2- CH... 1
- Unsaturated hydrocarbon Explain the following terms with example Unsaturated hydrocarbon: An unsaturated hydrocarbon is a hydrocarbon containing at least one double or triple bond. They are chemically more... 1
- Alkane Explain the following terms with example Alkane: Alkane is a saturated hydrocarbon. It is formed, when there is sharing of one electron pair between carbon atoms in a compound. The... 1
- Functional group Explain the following terms with example The compound acquire specific chemical properties due to these hetero atoms or the groups of atoms that contain hetero atoms, irrespective o... 1
- Hetero atom in a carbon compound Hetero atom in a carbon compound: It is a compound formed by replacement of carbon and hydrogen by hetero atom in a compound. A hetero atom... 1
- Explain the following terms with example Covalent bond The chemical bond formed by sharing of two valence electron between the two atoms is called covalent bond. It is also known as molecular bon... 1
- Explain the following terms with example. Structural isomerism The phenomenon in which compounds having different structural formulae have the same molecular formula is called structural isomerism. Butan... 1
- Draw all possible structural formulae of compounds from their molecular formula given below. Answer: (i) C₃H₈: one structure (propane); (ii) C₄H₁₀: two structures (n-butane and isobutane); (iii) C₃H₄: propyne, propadiene (and cyclopr... 2
- Draw an electron dot structure of the following molecules. (Without showing the circles) Answer: Electron dot structures (•• = one shared or lone pair of electrons) a. Methane (CH₄): carbon shares one electron pair with each of t... 1
- Match the pairs. Group ‘A’ Group ‘B’ a. C2 H6 1. Unsaturated hydrocarbon Group 'A' Group 'B' a. C₂H₆ 1. Saturated hydrocarbon b. C₂H₂ 2. Triple bond c. CH₄O 3. Molecular formula of an alcohol d. C₃H₆ 4. Unsaturate... 1