| 1 |
When alkyl is treated with chlorine in the presence of sunlight
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A. 1,3 dichloroproduct is formed
B. 1,4 dichloro product is formed
C. 1,3,5 trichloro product is formed
D. Only alkyl group is substituted
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| 2 |
The addition of unsymmetrical reagent to unsymmetrical alkene is in accordance with the rule:
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A. Hund's rule
B. Markownikov's rule
C. Pauli's Exclusion Principle
D. Auf bau Principle
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| 3 |
In CH4, all the H-C-H bond angles are
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A. 120°
B. 107°
C. 109°
D. 109.5°
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| 4 |
Benzene can be obtained by heating either benzoic acid with X or phenol with Y. X and Y are respectively
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A. Zinc dust and soda lime
B. Soda time and zinc dust
C. Zinc dust and sodium hydroxide
D. Soda lime and copper
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| 5 |
The three alternate single and double bonds in the benzene ring are called
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A. Conjugate bonds
B. Resonating bonds
C. Both A and B
D. None of above
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| 6 |
The hydrocarbons having double bonds normally end with suffix
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A. Ane
B. Ene
C. Yne
D. Oic
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| 7 |
The stability of acromatic compounds decreases with ------- in the no. of its resonance structure
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A. Decrease
B. Increase
C. Remain constant
D. Partially decreases
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| 8 |
Which gas is used for welding purposes
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A. Butane
B. Nitrogen
C. Methane
D. Acetylene
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| 9 |
Which of the following is not aromatic hydrogencarbon
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A. Benzene
B. Naphthalene
C. Toluene
D. Cyclohexene
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| 10 |
CnH2nis the general formula of
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A. Alkanes
B. Alkanes
C. alkynes
D. None of above
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| 11 |
Which of the following method is most appropriate for the manufacture of methane?
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A. By reduction of CH2CL2
B. Wurtz reaction
C. Liquification of natural gas
D. None of these
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| 12 |
Ethylene polymerizes at 100 atm pressure and 400°C to give
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A. Polybenzene
B. Polyalcohol
C. Polypropylene
D. Polyethylene
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| 13 |
A six membered ring containing one double bond called
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A. Cyclohexene
B. Cyclohexane
C. Cyclohexadiene
D. None
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| 14 |
Nitroalkane are used in
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A. Fuel
B. Solvents
C. Organic synthesis
D. All of them
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| 15 |
Hybridization in alkanes is:
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A. sp
B. sp2
C. sp3
D. dsp2
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| 16 |
Vinyl acetylene combines with HCl to form:
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A. Polyacetylene
B. Benzene
C. Chloroprene
D. Divinyl acetylene
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| 17 |
The method involved for electrolysis of Na or K salts of carboxylic acids
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A. Sabatier's sendrens reaction
B. Kolbe's method
C. Clemmensen
D. Wolf kishner reduction
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| 18 |
Write the name of following alkene CH2= CH - CH = CH2
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A. 1,3 butadiene
B. Butra -1, 3-diene
C. Both a & b
D. None
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| 19 |
Which of the following substances is used as an antiknock compound?
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A. Tetraethyl lead
B. Lead tetrachloride
C. Lead acetate
D. Ethyle acetate
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| 20 |
The temp. used for the hydrogenation of alkenes using Ni is
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A. 2000°C
B. 400°C
C. 200-- 300°C
D. 1000°C
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| 21 |
Acetylene is used in the manufacture of
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A. Rubber
B. Plastic
C. Ethyle alcohol
D. All of these
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| 22 |
The C-C bond angles in benzene ring are
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A. 119°
B. 120°
C. 121°
D. None
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| 23 |
De halogenatiion of tetrahalides happens in the presence of active metal like
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A. Zn
B. Mg
C. Both a and b
D. None of them
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| 24 |
Benzene is prepared from n-hexane in the presence of catalyst
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A. Cr2O3
B. Al2O3
C. SiO2
D. All above
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| 25 |
The hydrocarbon used for polymerization is
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A. Alkanes
B. Alkenes
C. Alkynes
D. All of above
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| 26 |
In Friedal-Craft's alkylation besides AlCl3 the other reactants are
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A. C6H6 + NH3
B. C6H6 + NH4
C. C6H6 + CH3Cl
D. C6H6 + CH3COCl
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| 27 |
A fuel has the same knocking property as a mixture of 70 isooctane (2, 2, 4- trimethyl pentane) and 30% n-heptane by volume the octane number of the fuel is
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A. 100
B. 70
C. 50
D. 40
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| 28 |
The simplest and the parent members of aromatic hydrocarbon is
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A. Benzene
B. Toluene
C. Biphenyis
D. Naphthalene
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| 29 |
The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with the rule
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A. Hund's rule
B. Markowvikov's rule
C. Pauli's exclusion principle
D. Auf ban principle
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| 30 |
In which one of the following compound rings are not fused together at ortho positions
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A. Phenanthrene
B. Naphthalene
C. Diphenyemethane
D. Anthracene
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