| 1. | IUPAC name of first member of homologous series of ketones is ? | |
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Butanone
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methanone
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Ethanone
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Propanone
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Report Question| 2. | Choose the statement which was/were incorrect ? | |
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The common name of pentanone is ethyl methyl ketone.
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The IUPAC name of CH3COCH3 is propanone
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The IUPAC name of the compound CH3COCH2CH2CH3 is pentanone.
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The IUPAC name of the compound CH3COCH2CH3 is butanone.
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| 3. | The alcoholic drinks contain ? | |
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CH3COOH3
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CH3COOH
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CH3CH2OH
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CH3OH
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| 4. | Which one of the given is an unsaturated hydrocarbon ? | |
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Decane
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Propane
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Acetylene
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Butane
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| 5. | 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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Helium
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Neon
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Argon
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| 6. | Rigid Three dimensional structure of carbon allotrope forming 4 bond with each carbon ? | |
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Carbon ball
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Graphite
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Diamond
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Fullerene
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| 7. | The property of self-linkage among identical atoms to form long chain compounds is known as ? | |
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Halogenation
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Superposition
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Catenation
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Isomerisation
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| 8. | Rectified spirit is ? | |
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80% ethanol
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40 to 50% ethanol
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50% ethanol
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95% ethanol
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| 9. | Covalent compounds ? | |
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are formed by the sharing of electrons in the bonding atoms.
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are formed between atoms of metals and non-metals
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are mostly soluble in water
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have high melting and boiling point
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| 10. | Why does carbon form compounds mainly by covalent bonding ? | |
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It shares its valence electrons to complete its octet.
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It requires large amount of energy to form C4+ or C4–
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There are four electrons in the outermost shell of carbon.
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All the above
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