| 1. | Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of ? | |
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Oxidation reaction
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Addition reaction
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Displacement reaction
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Substitution reaction
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Report Question| 2. | Ethanol on oxidation gives ? | |
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Methane
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Ethanoic acid
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Formalin
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Ethane
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| 3. | Artificial flavour for orange is obtained from ? | |
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methyl butyrate
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isoamyl valerate
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octyl acetate
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amyl acetate
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| 4. | Which of the following contains covalent bond ? | |
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HCl
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Al2O3
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CaF2
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MgCl2
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| 5. | Which of the following statement is or are correct ? | |
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An unsaturated hydrocarbon containing a triple bond is indicated by writing the word “yne” after the stem.
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An unsaturated hydrocarbon containing a double bond is indicated by writing the word “ene” after the stem.
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A saturated hydrocarbon containing single bonds is indicated by writing the word “ane” after the stem.
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All the above.
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| 6. | Which of the following statements are usually correct for carbon compounds? these ? | |
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are good conductors of electricity, do not have strong forces of attraction between their molecule.
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are poor conductors of electricity, do not have strong forces of attraction between their molecules.
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are poor conductors of electricity, have strong forces of attraction between their molecules.
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are good conductors of electricity, have strong forces of attraction between their molecules.
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| 7. | Which of the following statement is or are incorrect ? | |
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The simplest alkene is ethene having the molecular formula C2H4.
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The general formula of alkynes is CH2n +2 where n is the number of carbon atoms in one molecule of the alkyne.
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An unsaturated hydrocarbon in which the two carbon atoms are connected by a double bond is called an alkene.
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The unsaturated hydrocarbons are obtained mostly from petroleum by a process called cracking.
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| 8. | Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g. hydrogen. After the formation of four bonds, carbon attains the electronic configuration of ? | |
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krypton
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neon
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argon
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helium
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| 9. | The number of covalent bonds in C4H10 is ? | |
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13
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12
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8
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10
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| 10. | Give the IUPAC name of CH3COOC2H5 ? | |
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Etyl methyl carboxylic acid
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Ethyl ethanoate
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Ethyl ethanoic acid
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Butanoate
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