Organic Chemistry: MCQ Test
50 questions · pick one option for each · submit when you finish to see your score and the correct answers.
Question 1 of 50
The percentage of nitrogen in urea is ____
- A0.26
- B0.36
- C0.46
- D0.6
Question 2 of 50
Formic acid is produced by?
- ATermite
- Bcockroach
- Cred ant
- DMosquito
Question 3 of 50
Lucite, a poisonous gas used in warfare, is made from
- Afrom chlorine
- BFrom ammonia
- Cin acetylene
- Dfrom nitrobenzene
Question 4 of 50
The famous refrigerant 'Freon' is actually—
- Acalcium fluoride
- BFluorspar
- CHydrofoliacic acid
- Ddichlorodiphloge methane
Question 5 of 50
The bond angle between carbon and hydrogen in the methane molecule is ____
- A105°
- B120°
- C180°
- D109° 28'
Question 6 of 50
The process by which organic compounds are slowly decomposed by microorganisms is called-
- Apolymerization
- Bcompaction
- Cdestruction
- DFermentation
Question 7 of 50
denatured alcohol_
- Ais a form of alcohol
- BNot suitable for drinking as it contains toxic substances
- CThese are coloured impurities.
- DThe taste is sweet
Question 8 of 50
The reactive radical present in carboxylic acid is-
- A—CHO
- B—COOH
- CC=O
- D—COOR
Question 9 of 50
What is the main component of 'Gobar Gas'?
- AAthene
- Bmethane
- CPropane
- DAcetylene
Question 10 of 50
Used to remove ink stains_
- ABenzoic acid
- Bacetic acid
- Coxalic acid
- Dboric acid
Question 11 of 50
Which of the following is known as 'Marsh Gas'?
- AEthene
- Bchlorine
- CAthene
- Dmethane
Question 12 of 50
The solution applied to the face after shaving has a cooling effect. This property is due to the presence of which compound?
- Aethyl alcohol
- Bmethyl alcohol
- CSalicylic acid
- DNone of these
Question 13 of 50
What is the quality of petrol expressed by?
- Acetane number
- BAdditive unleaded compounds
- Coctane number
- DSwarnaka
Question 14 of 50
Which of the following is used to preserve fruit juice?
- Aacetic acid
- BFormic acid
- Csulfuric acid
- Dsodium benzoate
Question 15 of 50
Which of the following is the main component of vinegar?
- Acitric acid
- Bacetic acid
- Clactic acid
- Dnitric acid
Question 16 of 50
From what is commercial Vaseline extracted?
- Aplant gum
- Bbitumen
- CArn wax
- Dpetroleum
Question 17 of 50
Methyl propane is an isomer of which of the following?
- An-butane
- Bn propane
- Cn hexane
- Dpentane
Question 18 of 50
The main source of naphthalene is—
- Abitumen
- Bdiesel
- CCharcoal
- DCamphor
Question 19 of 50
What is another name for vinegar?
- Aethanoic acid
- Bnitric acid
- Csulfuric acid
- DTartaric acid
Question 20 of 50
The general formula of alkene is_
- ACnH²n
- BCnH²n-¹
- CCn H²n +¹
- DCnH²n+²
Question 21 of 50
Which of the following is a sweet smelling substance?
- Aammonia
- Bmethanol
- CEsters
- DEthanol
Question 22 of 50
Who first synthesized urea in the laboratory?
- AWilliamson
- BKolve
- CWöhler
- DViolet
Question 23 of 50
Which poisonous gas is formed when ethylene reacts with sulphur monochloride?
- ALucite
- Bmustard gas
- Cchloropicrin
- DSerine
Question 24 of 50
Accumulation of which fluid in the muscles causes fatigue?
- Alactic acid
- Boxalic acid
- CUric acid
- Dpyruvic acid
Question 25 of 50
Which plastic is used for packing food items?
- Apolyvinyl chloride
- Bpolypropylene
- Cpoly ethylene
- Dtetrafluoro in
Question 26 of 50
Antifreeze is a mixture of_
- Aof acetic acid and water
- Bof formic acid and water
- Cof methyl alcohol and water
- Dof ethyl alcohol and water
Question 27 of 50
In what form is iodoform used?
- Aantipyretic
- Banalgesic
- Cantiseptic
- Danesthetic
Question 28 of 50
The IUPAC name of acetylene is ____.
- Aethene
- BEthyne
- CPropine
- Dbutyne-2
Question 29 of 50
Which one of the following is the largest component of biogas?
- Acarbon dioxide
- Bmethane
- Chydrogen
- Dhydrogen sulfide
Question 30 of 50
The composition of kerosene oil is ____.
- AC¹C⁵
- BC⁵C¹¹
- CC¹¹C¹⁶
- DC¹⁶ C¹⁸
Question 31 of 50
Which statement is not correct regarding 'homogeneous series'?
- AAll members of a homologous series can be expressed by a single general formula
- BAny member of a homologous series shows a difference of —CH² from the molecular formula of the next and previous member.
- CAll members of a homologous series show similar chemical properties.
- DThere is no gradual change in the physical properties of the members of a homologous series
Question 32 of 50
Urotropin is_
- Ahexamethylene diamine
- Bhexamethylene triamine
- Chexamethylene tetraamine
- Dhexamethylene pentaamine
Question 33 of 50
Where is spermatic wax obtained from?
- Afrom palm leaves
- Bfrom honeycombs
- Cfrom petroleum
- Dfrom whales
Question 34 of 50
For safety reasons, what is filled in LPG cooking gas cylinders to make the gas smell good, so that leakage can be detected quickly?
- Aglycol
- Bglycerol
- CMercaptan
- Dalcohol
Question 35 of 50
Where is chlorofluorocarbon mostly used?
- Ain myco ovens
- Bin solar heaters
- Cin washing machines
- Din refrigerators
Question 36 of 50
When petroleum is heated, the vapor evolved in the largest quantity is ___
- AKerosene
- BSaimojin
- CPetroleum Year
- DVaseline
Question 37 of 50
The empirical formula of acetylene is-
- ACH
- BCH²
- CCH⁴
- DC²H²
Question 38 of 50
Which gas is released during fermentation?
- Acarbon dioxide
- Bsulfur dioxide
- Coxygen
- Dhydrogen
Question 39 of 50
It is used to make medicine
- ABenzoic acid
- Bpicric acid
- Coxalic acid
- DCitric acid
Question 40 of 50
Orion is a polymer made from what?
- AAcrylonitrile
- BNeoprene
- Cvinyl chloride
- Dtetrafluoroethylene
Question 41 of 50
Plastic is actually—
- AComplex compounds of saturated hydrocarbons
- BHigh polymers of unsaturated hydrocarbons
- CIsomers of unsaturated hydrocarbons
- Dan inorganic complex compound
Question 42 of 50
Stones formed in human kidneys are usually made of ______
- Aof calcium oxalate
- Bof sodium acetate
- Cof magnesium sulfate
- Dof calcium
Question 43 of 50
Gasohol, which is used as fuel in motor vehicles, is a mixture of ____
- Aof methane and alcohol
- Bpetrol and alcohol
- Cof hydrogen and alcohol
- Dnatural gas and alcohol
Question 44 of 50
Isomeric compounds show differences in
- Ain the molecular formula
- BIn the structural formula
- Cin chemical properties
- Din all of the above
Question 45 of 50
Which one of the following fuels is used in gas welding?
- ALPG
- BEthylene
- Cmethane
- DAcetylene
Question 46 of 50
Which of the following organic compounds is used to remove production stains from iron compounds?
- Aoxalic acid
- BBenzoic acid
- CPhthalic acid
- Dcinnamic acid
Question 47 of 50
The sourness of curd is due to the following:
- Acitric acid
- Blactic acid
- Cacetic acid
- Dnone of these
Question 48 of 50
Glycol is added to aviation gasoline because it ____
- AReduces evaporation of petrol
- BIncreases the efficiency of petrol.
- CPrevents freezing of petrol
- DReduces petrol consumption
Question 49 of 50
How much difference does any member of a homologous series show from the molecular formula of the next and previous member?
- ACH₂
- BCH⁴
- CC²H⁴
- DC²H⁶
Question 50 of 50
The plastic called 'Teflon' is formed by the polymerization of which compound?
- AEthylene
- BAcetylene
- Cbenzene
- Dtrifluoroethylene