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Class 10 Chemistry Hydrocarbons 14. Write the molecular dot and cross and structural formula of ethyne.


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14. Write the molecular dot and cross and structural formula of ethyne.

The nature of - Cl group isa) Ortho directingc) Para directingb) Meta directingd) Orth and para directing
The nature of - Cl group isa) Ortho directingc) Para directingb) Meta directingd) Orth and para directing

The nature of - Cl group isa) Ortho directingc) Para directingb) Meta directingd) Orth and para directing

13. What would be the major monochloro product (or products) formed when each of the following compounds react with chlorine in presence of ferric chloride?(i) Ethyl benzene \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{CH}_{3}
13. What would be the major monochloro product (or products) formed when each of the following compounds react with chlorine in presence of ferric chloride?(i) Ethyl benzene  \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{CH}_{3}

13. What would be the major monochloro product (or products) formed when each of the following compounds react with chlorine in presence of ferric chloride?(i) Ethyl benzene \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{CH}_{3}

11. Draw the structures of the following compounds:(iii) Ethyl benzene
11. Draw the structures of the following compounds:(iii) Ethyl benzene

11. Draw the structures of the following compounds:(iii) Ethyl benzene

14. Write the molecular dot and cross and structural formula of ethyne.
14. Write the molecular dot and cross and structural formula of ethyne.
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14. Write the molecular dot and cross and structural formula of ethyne.

7. Dehydrohalogenation takes place in the presence ofa. \mathrm{NaOH} aqueousb. alcoholic \mathrm{KOH} c. aqueous \mathrm{KOH} d. alcoholic \mathrm{NaOH}
7. Dehydrohalogenation takes place in the presence ofa.  \mathrm{NaOH}  aqueousb. alcoholic  \mathrm{KOH} c. aqueous  \mathrm{KOH} d. alcoholic  \mathrm{NaOH}

7. Dehydrohalogenation takes place in the presence ofa. \mathrm{NaOH} aqueousb. alcoholic \mathrm{KOH} c. aqueous \mathrm{KOH} d. alcoholic \mathrm{NaOH}

5. How are alkyl halides reduced?
5. How are alkyl halides reduced?

5. How are alkyl halides reduced?

14. The end product of oxidation of acetylene is :a. oxalic acidb. glycolc. glyoxald. none of these
14. The end product of oxidation of acetylene is :a. oxalic acidb. glycolc. glyoxald. none of these

14. The end product of oxidation of acetylene is :a. oxalic acidb. glycolc. glyoxald. none of these

1. Differentiate between saturated and unsaturated hydrocarbons.
1. Differentiate between saturated and unsaturated hydrocarbons.

1. Differentiate between saturated and unsaturated hydrocarbons.

1. Name the following by I.U.P.A.C system:(v) \mathrm{HC} \equiv \mathrm{C}-\mathrm{CH}\left(\mathrm{CH}_{8}\right)_{3}
1. Name the following by I.U.P.A.C system:(v)  \mathrm{HC} \equiv \mathrm{C}-\mathrm{CH}\left(\mathrm{CH}_{8}\right)_{3}

1. Name the following by I.U.P.A.C system:(v) \mathrm{HC} \equiv \mathrm{C}-\mathrm{CH}\left(\mathrm{CH}_{8}\right)_{3}

14. Starting from benzene how will you prepare the following:(ii) \mathrm{m} -nitrotoluene
14. Starting from benzene how will you prepare the following:(ii)  \mathrm{m} -nitrotoluene

14. Starting from benzene how will you prepare the following:(ii) \mathrm{m} -nitrotoluene

18. Why colour of bromine water discharges on addition of ethene in it?
18. Why colour of bromine water discharges on addition of ethene in it?

18. Why colour of bromine water discharges on addition of ethene in it?

17. How can you identify ethane from ethene?
17. How can you identify ethane from ethene?

17. How can you identify ethane from ethene?

The process in which orbital of different energies and shapes mix with each other to give equivalent hybrid orbitals is calleda) Isomerismc) hybridizationb) Polymerizationd) resonance
The process in which orbital of different energies and shapes mix with each other to give equivalent hybrid orbitals is calleda) Isomerismc) hybridizationb) Polymerizationd) resonance

The process in which orbital of different energies and shapes mix with each other to give equivalent hybrid orbitals is calleda) Isomerismc) hybridizationb) Polymerizationd) resonance

1. Name the following by I.U.P.A.C system:(iii)
1. Name the following by I.U.P.A.C system:(iii)

1. Name the following by I.U.P.A.C system:(iii)

1. Which one of these hydrocarbon molecules would have no effect on an aqueous solution of bromine?a. \mathrm{CH}_{4} b. \mathrm{C}_{10} \mathrm{H}_{20} c. \mathrm{C}_{2} \mathrm{H}_{4} d. \mathrm{C}_{2} \mathrm{H}_{2}
1. Which one of these hydrocarbon molecules would have no effect on an aqueous solution of bromine?a.  \mathrm{CH}_{4} b.  \mathrm{C}_{10} \mathrm{H}_{20} c.  \mathrm{C}_{2} \mathrm{H}_{4} d.  \mathrm{C}_{2} \mathrm{H}_{2}

1. Which one of these hydrocarbon molecules would have no effect on an aqueous solution of bromine?a. \mathrm{CH}_{4} b. \mathrm{C}_{10} \mathrm{H}_{20} c. \mathrm{C}_{2} \mathrm{H}_{4} d. \mathrm{C}_{2} \mathrm{H}_{2}

6. Describe simple chemical tests that would distinguish between:(a) 2 -bromo propane
6. Describe simple chemical tests that would distinguish between:(a) 2 -bromo propane

6. Describe simple chemical tests that would distinguish between:(a) 2 -bromo propane

2. Give the structural formulas of:(i) 2233 -tetramethyl pentane.
2. Give the structural formulas of:(i)  2233 -tetramethyl pentane.

2. Give the structural formulas of:(i) 2233 -tetramethyl pentane.

6. Describe simple chemical tests that would distinguish between:(c) An alkane and an alkyl - halide
6. Describe simple chemical tests that would distinguish between:(c) An alkane and an alkyl - halide

6. Describe simple chemical tests that would distinguish between:(c) An alkane and an alkyl - halide

Write balanced chemical equations for the following reactions. Also name the products that are formed.(ii) Ethyne is treated with chlorine
Write balanced chemical equations for the following reactions. Also name the products that are formed.(ii) Ethyne is treated with chlorine
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Write balanced chemical equations for the following reactions. Also name the products that are formed.(ii) Ethyne is treated with chlorine

(b) Draw resonance structures for benzene.
(b) Draw resonance structures for benzene.
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(b) Draw resonance structures for benzene.

4. Write clectronic structures for the following simple organic molecules(i) Acetone
4. Write clectronic structures for the following simple organic molecules(i) Acetone
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4. Write clectronic structures for the following simple organic molecules(i) Acetone

Hydrocarbons are organic compounds which contains elementsa) Hydrogenc) carbonb) Hydrogen and carbond) halogens
Hydrocarbons are organic compounds which contains elementsa) Hydrogenc) carbonb) Hydrogen and carbond) halogens
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Hydrocarbons are organic compounds which contains elementsa) Hydrogenc) carbonb) Hydrogen and carbond) halogens

4. Halogenation of methane does not produce :a. carbon tetrachlorideb. chloroformc. carbon blackd. chloromethane
4. Halogenation of methane does not produce :a. carbon tetrachlorideb. chloroformc. carbon blackd. chloromethane
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4. Halogenation of methane does not produce :a. carbon tetrachlorideb. chloroformc. carbon blackd. chloromethane

10. Why alkane cant be oxidized with \mathrm{KMnO}_{4} solution?
10. Why alkane cant be oxidized with  \mathrm{KMnO}_{4}  solution?
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10. Why alkane cant be oxidized with \mathrm{KMnO}_{4} solution?

1. Name the following by I.U.P.A.C system:(ii)
1. Name the following by I.U.P.A.C system:(ii)
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1. Name the following by I.U.P.A.C system:(ii)

Alkyl halides when reduced with nascent hydrogen in the presence of \mathrm{Zn}+\mathrm{HCl} are converted to.a) Alkynesc) Alkanesb) Alkenesd) Alcohol
Alkyl halides when reduced with nascent hydrogen in the presence of  \mathrm{Zn}+\mathrm{HCl}  are converted to.a) Alkynesc) Alkanesb) Alkenesd) Alcohol
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Alkyl halides when reduced with nascent hydrogen in the presence of \mathrm{Zn}+\mathrm{HCl} are converted to.a) Alkynesc) Alkanesb) Alkenesd) Alcohol

19. State one important use of each:(iii) Chloroform
19. State one important use of each:(iii) Chloroform
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19. State one important use of each:(iii) Chloroform

Prepare the following as directed:(i) ethane from ethene;
Prepare the following as directed:(i) ethane from ethene;
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Prepare the following as directed:(i) ethane from ethene;

Methane may be produced in the laboratory by heating a mixture of \mathrm{CH}_{3} \mathrm{COONa}^{\text {and }} a) \mathrm{NaCL} c) \mathrm{NaOH} b) \mathrm{H}_{2} \mathrm{SO}_{4} d) \mathrm{HCL}
Methane may be produced in the laboratory by heating a mixture of  \mathrm{CH}_{3} \mathrm{COONa}^{\text {and }} a)  \mathrm{NaCL} c)  \mathrm{NaOH} b)  \mathrm{H}_{2} \mathrm{SO}_{4} d)  \mathrm{HCL}
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Methane may be produced in the laboratory by heating a mixture of \mathrm{CH}_{3} \mathrm{COONa}^{\text {and }} a) \mathrm{NaCL} c) \mathrm{NaOH} b) \mathrm{H}_{2} \mathrm{SO}_{4} d) \mathrm{HCL}

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