XII Chemistry Hydrocarbons Online Test Mdcat-2024

MDCAT Chemistry XII Hydrocarbons
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    XII Chemistry Hydrocarbons Online Test Mdcat-2024

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    1 / 50

    1. This Reaction takes place under  ________ and high temperature and pressure

    benzene + cl2 forms chlorobenzene

    2 / 50

    2. This Reaction occurs at ____ temperature, _____ pressure, and in the presence of____.  benzene to cyclohexane

    3 / 50

    3. Tick the correct statement about benznene:

     

    i) Colorful liquid with a molecular mass of 78 g/mol.

    ii) Melting point: 5.5°C.

    iii) Boiling point: 80 K.

    iv) Density: 0.88 g/m³.

    4 / 50

    4. A racemic mixture is formed by:

    5 / 50

    5. Which molecule is NOT capable of exhibiting optical isomerism?

    6 / 50

    6. Which of the following statements is true about optical isomers?

    7 / 50

    7. Which of the following statements is/are true?

    1. Functional group isomerism: This occurs when molecules have different molecular formulas and functional groups.
    2. Chain isomerism: This occurs when molecules have the same molecular formula and the same arrangements of carbon atoms in the chain.
    3. Positional isomerism: This occurs when molecules have the same molecular formula but the functional group is attached to different carbon atoms within the chain.
    4. Stereoisomerism: This occurs when molecules have the same molecular formula and connectivity but differ in the spatial arrangement of atoms.

    8 / 50

    8. Tick the Correct Statement :

    9 / 50

    9. Which one of the following is a derivative of benzene is a deactivated derivative of benzene?

    10 / 50

    10. Which one of the following pairs doesn't show function group isomers?

    11 / 50

    11. What is the angle of benzene?

    12 / 50

    12. Incorrect about para directors :

    13 / 50

    13. Which one of the following is used for oxidation of benzene?

    14 / 50

    14. which of the following is the derivative of benzene which is more reactive?

    15 / 50

    15. What is the boiling point of benzene?

    16 / 50

    16. Possible isomers of pentane:

    17 / 50

    17. The bond length of carbon-carbon single and double bonds in benzene is :

    18 / 50

    18. SO3 has:

    19 / 50

    19. Benzene is less reactive and highly stable due to

    20 / 50

    20. In sulphonation of benzene electrophile is

    21 / 50

    21. In which reaction of benzene aromatic ketone is formed?

    22 / 50

    22. In which reaction, benzene loses its aromaticity?

    23 / 50

    23. Acylation of toluene gives:

    24 / 50

    24. In which process of  free radicals substitution reaction , two free radicals are farmed

    25 / 50

    25. What is incorrect about ethyne?

    26 / 50

    26. Which one of the following is correct about Alkynes?

    27 / 50

    27. -COOR and -CHO are :

    28 / 50

    28. The isomerism exhibited by n-propyl alcohol and isopropyl alcohol is

    29 / 50

    29. How many structural isomers does the formula C5H11OH have?

    30 / 50

    30. Identify the chiral molecule among the following

    31 / 50

    31. The molecular formula C5H12 contains how many isomeric alkanes

    32 / 50

    32. Which of the following does not exhibit geometric isomerism?

    33 / 50

    33. Alkanes undergo halogenation it is an example of

    34 / 50

    34. Which of the following is not a process of halogenation of alkanes

    35 / 50

    35.


    what is the total number of chain isomers possible for n-hexane?

    36 / 50

    36. An alkane with 6 carbon atoms will have how many hydrogen atoms?

    37 / 50

    37. Alkyne show _________ reactions:.

    38 / 50

    38. In the ozonolysis reaction, acetylene forms

    39 / 50

    39. Acetylene is oxidized by KMnO4 to form

    40 / 50

    40. To prepare alkenes from alkyl halide the process used is :

    41 / 50

    41. The most reactive halogen in the halogenation of alkanes under sunlight is

    42 / 50

    42. The reaction of hydrogen bromide with ethylene is an example of :

    43 / 50

    43. Which of the following statements is true about electrophiles?

    44 / 50

    44. Correct about Benzene:

    i) Colorless

    ii) Carcinogenic

    iii) It Produces white flames on burning due to the absence of a Carbon atom in it

    45 / 50

    45. Hydrogenation 0f ethe can be carried out in the presence o

    46 / 50

    46. What is formed when ethene undergoes hydrohalogenation with a halogen acid (HX)?

    47 / 50

    47. Which rule governs the addition of halogen acid on an unsymmetrical alkene during hydrohalogenation?

    48 / 50

    48. Arenes do not undergo ___________.

    49 / 50

    49. Identify the incorrect statement related to aromatic hydrocarbons:

    50 / 50

    50. Which gas is the main constituent of natural gas?

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