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MCQ's Test For ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons
Try The MCQ's Test For ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons
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Total Questions30
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Time Allowed30
ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons
00:00
Question # 1
The process in which orbitals of different energies and shapes mix with each other to give equivalent hybrid orbitals is called
Question # 2
Alkenes normally have ______ geometry
Question # 3
The presence of a double bond in a compound in the sign of:
Question # 4
Which compound was recognized the parent member of aromatic compounds
Question # 5
When sodium benzoate is treated with soda lime (NaOH) benzene is formed. What is the other product
Question # 6
Amongst the following the compound that can be most readily sulphonated is
Question # 7
When benzene is burnt in free supply of air, it is completely oxidized to
Question # 8
Benzene is not prepared from
Question # 9
Which of the following decolorized Br2-water
Question # 10
Write the name of following alkene CH2= CH - CH = CH2
Question # 11
Which of the following is an ortho-para directing group
Question # 12
To differentiate isomers we use
Question # 13
The compound prepared by a substitution reaction of benzene is
Question # 14
The term aromatic was derives from
Question # 15
An alkane is produced when an alkyle halide reacts with zinc in the presence of
Question # 16
The addition of HBr is easiest with
Question # 17
Which of the following method is most appropriate for the manufacture of methane?
Question # 18
The electrophile in aromatic sulphonation is
Question # 19
Catalytic oxidation of alkanes is used for the preparation of
Question # 20
Aromatic hydrocarbons are the derivatives of
Question # 21
The carbon, carbon bond length in benzene is
Question # 22
A single benzene ring can have ______ ortho position maximally
Question # 23
A six membered ring containing one double bond called
Question # 24
For preparing an alkane, a concentrated aqueous solution of sodium or potassium salt of saturated carboxylic acid is subjected to
Question # 25
Which one of the following gases is used for artificial ripening of fruits
Question # 26
Which one gives acidic reactions?
Question # 27
The correct order of reactivity of halogens with alkanes is
Question # 28
Incomplete oxidation of alkanes yields
Question # 29
Write the name of following compound
Question # 30
A salt producing hydrocarbon among these compounds is
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G GOVT. SUFFA EDUCATION CENTER GIRLS MURIDKE 01 - Jun - 2024 04 Min 52 Sec 110/120 -
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ECAT Chemistry Chapter 19 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Mustard gas is a : |
A. Gas
B. Liquid
C. Solid
D. High boiling point
|
| 2 | When methane reacts with Cl2in the presence of diffused light the products obtained are? |
A. Chloroform only
B. Carbon tetrachloride only
C. Chloromethane and dichloromethane
D. Mixture of a,b,c
|
| 3 | Synthesis rubber is made by polymerization : |
A. Chloroform
B. Acetylene
C. Divinyl acetylene
D. Butene
|
| 4 | Acetylene gives |
A. White ppt. with ammonical AgNO3 and red ppt. with ammonical Cu(NO3)2
B. White ppt. with ammonical AgNO3 and red ppt. with ammonical Cu2C12
C. White ppt. with both
D. Red ppt. with both
|
| 5 | Vinyl acetylene combines with HCI to form |
A. Poly acetylene
B. Benzene
C. Chloroprene
D. Divinylacetylene
|
| 6 | The simplest and the parent members of aromatic hydrocarbon is |
A. Benzene
B. Toluene
C. Biphenyis
D. Naphthalene
|
| 7 | Octane number can be changed by |
A. Isomerisation
B. Alkylation
C. Cyclisation
D. All of these
|
| 8 | Physical properties of alkanes increase with increase of all physical constants except |
A. Boiling points
B. Melting points
C. Density
D. Solubility
|
| 9 | Which reaction is too vigorous to control |
A. Chlorination
B. Bromination
C. Iodination
D. Fluorination
|
| 10 |
|
A. 4-methyl pentene
B. 2-methyle-1-butene
C. 2-methyl propane
D. None of the above
|
Test Questions