NTSE Chemistry Carbon Coal and Petroleum MCQs

Question: The IUPAC name for the compound-

• a) 4 - Ethyl - 2 - pentene
• b) 1 - Ethyl - 3 - methyl - 2 - butane
• c) 3 - Methylhex - 4 - en - 1 yne
• d) 4 - Methyl - 2 - hexen - 5 yne

Answer: 3 - Methylhex - 4 - en - 1 yne

Question: Number of and bonds in benzene will be-

• a) 6, 3
• b) 3, 3
• c) 12, 3
• d) 9, 3

Answer: 12, 3

Question: IUPAC name of the following compound is -

• a) 1 - Fluoro - 1 - methyl - 2 - nitrobutanal
• b) 3 - Nitro - 2 - fluoro - 2 - methylbutanal
• c) 2 - Fluoro - 2 - methyl - 3 – nitrobutanal
• d) None of these

Answer: 2 - Fluoro - 2 - methyl - 3 – nitrobutanal

Question: The IUPAC name of C2H2 is -        

• a) Ethylene
• b) Acetylene
• c) Ethane
• d) Ethyne

Answer: Ethyne

Question: Which of the following statements is most true ?

• a) The IUPAC name of alkenes ends with suffix - ene.
• b) The IUPAC name of alkynes ends with suffix - yne.
• c) The substituents get lower number of comparison to double bond
• d) All are true

Answer: All are true

Question: Gammaxene is -

• a) DDT
• b) Benzene hexachloride
• c) Chloral
• d) Hexachloro ethane

Answer: Benzene hexachloride

Question: C2H4O2 is -       

• a) Alcohol
• b) Aldehyde
• c) Carboxylic acid
• d) Ketone

Answer: Carboxylic acid

Question: Which of the following pairs is an example of chain isomer ?

• a) CH3 - CH2 - OHand  CH3OCH3
• b)
  

  CH3 - CH2 - CHO   and   CH3 - COCH3

• c)

  

• d) All of the above

Answer:

Question: Total number of structural isomers of C4H₁₀ are -       

• a) 5
• b) 7
• c) 2
• d) 4

Answer: 2

Question: Which of the following is a functional isomer of CH3 - COOH

• a) CH3 - CH2 - OH
• b)

  

• c)

  

• d) All of these

Answer:

More Questions..................................

Question: Which of the following statements is incorrect. The members of the homologous series of alkanes -

• a) are all straight chain compounds.
• b) have the general formula C_nH_2n+2
• c) have similar chemical properties.
• d) show a regular gradation of physical properties.

Answer: are all straight chain compounds.

Question: The molecular formula of an ester is HCOOCH3. What will be the molecular formula of the alcohol and the acid from which it might be prepared ?     

• a) CH3COOH + CH3OH 
• b) HCOOH + C2H5OH 
• c) PCI2  
• d) All the these

Answer: PCI2  

Question: Alcohols cannot be oxidized to carboxylic acids by -

• a) alkaline KMnO4 
• b) acidified K2Cr2O7  
• c) PCI5  
• d) All of these

Answer: PCI5  

Question: When formaldehyde is heated with phenol in the presence of an alkali, the product formed is -

• a) Rubber
• b) Bakelite
• c) Chloroprene
• d) Neoprene

Answer: Bakelite

Question: The compounds A,B and C in the following reaction sequence are -

• a) Starch, sucrose, fructose
• b) Sucrose, maltose, glucose
• c) Starch, maltose, glucose
• d) Starch, sucrose, glucose

Answer: Starch, maltose, glucose

Question: The structure of 4-Methyl - 2 - hexyne is -

• a)

  

• b)

  

• c)

  

• d) None of these

Answer:

Question: The IUPAC name of is butane is -

• a) 1, 1-Dimethylethane
• b) 1-Methylpropane
• c) 2-Methylethane
• d) 2- Methylpropane

Answer: 2- Methylpropane

Question: Which of following has the highest percentage of carbon ?

• a) Peat
• b) Lignite
• c) Bituminous
• d) Anthracite

Answer: Anthracite

Question: C6H₁₂ hydrocarbon is -          

• a) Hexane
• b) Hexene
• c) Hexyne
• d) Heptane

Answer: Hexene

Question: Petroleum products can be separated by -

• a) Crystallization
• b) Boiling
• c) Fractional distillation
• d) Fusion

Answer: Fractional distillation

Question: Out of the different types of fuels the one which is excellent is -

• a) The solid fuel
• b) The liquid fuel
• c) The gaseous fuel
• d) None of these

Answer: The gaseous fuel

Question:

In the reactio CH3COONa + NaOH  product ‘X’ would be-

• a) CH3CHO 
• b) CH3COOH       
• c) CH4 
• d) None of these

Answer: CH4 

Question: Windows of aeroplane are made up of -

• a) Polyethylene
• b) Polypropylene
• c) PVC
• d) Polymethylmethacrylate

Answer: Polymethylmethacrylate

Question: Of which synthetic fiber gear of machines are made up of ?

• a) Nylon-66
• b) Terylene
• c) Rayon
• d) Orion

Answer: Nylon-66

Question: Which of the following is an addition polymer ?

• a) Neoprene
• b) Teflon
• c) Polyvinyl chloride
• d) All of these

Answer: All of these

Question: Which of following will give the red ppt. with Feeling solution ?

• a) H-COOH
• b) CH3-COOH 
• c) CH3-OH 
• d) CH3-CH2-OH

Answer: H-COOH

Question: The enzyme, which is used to convert sucrose into glucose and fructose, is -

• a) Invertase
• b) Zymase
• c) Diastase
• d) Lactase

Answer: Invertase

Question: Denatures alcohol contains ethyl alcohol and -

• a) Methyl alcohol
• b) Pyridene
• c) (A) & (B)
• d) None of these

Answer: (A) & (B)

Question: Which of the following will give the reactions of aldol condensation ?

• a) CH3 - CHO   
• b) H - COOH
• c) CH3 - CH2 - OH 
• d) H - CHO

Answer:  CH3 - CHO   

Question:

2HCHO + NaOH → CH3 - OH + H - COONa, the name of given reaction is -

• a) Aldol condensation
• b) Cannizzaro
• c) Haloform
• d) None of these

Answer: Cannizzaro

Question: Ammonical silver nitrate solution is called -

• a) Tollens reagent
• b) Fehling solution
• c) (A) & (B)
• d) None of these

Answer: Tollens reagent

Question: Which of following is used in treatment of urinary infection ?

• a) Formaldehyde
• b) Urotropine
• c) Methyl alcohol
• d) Ammonia

Answer: Urotropine

Question: Chloroform can be obtained from -

• a)

  C2H5OH 

• b)

  CH3 - CO - CH3

• c)

   CH3 - CHO

• d) All

Answer: All

Question: Which of the following is an essential ingredient of nail polish ?

• a)

  CH3 - OH 

• b)

  CH3 - CH2 - OH

• c)

  CH3 - COOH

• d)

  CH3 - CO - CH3

Answer:

CH3 - CO - CH3

Question: Which of the following is used for non-stick coating on kitchen utencils ?

• a) PTFE
• b) PVC
• c) BUNA-S
• d) None of these

Answer: PTFE

Question: The value of temperature coefficient lies between -

• a) 2 and 3
• b) 3 and 4
• c) 4 and 5
• d) 1 and 2

Answer: 2 and 3

Question: Nylon -66 is made up of

• a) Hexamethylene diamine & adipic acid
• b) Hexamethylene diamine & acetic acid
• c) Urea and acetic acid
• d) None of these

Answer: Hexamethylene diamine & adipic acid

Question: Magnetic recording tapes are made up of -

• a) Terylene
• b) PVC
• c) PTFE
• d) None

Answer: Terylene

Question: Bakelite is an example of -

• a) Thermoplastic
• b) Thermosetting plastics
• c) Fibre
• d) All are correct

Answer: Thermosetting plastics

Question: Which of following is used in treatment of urinary infection ?

• a) Formaldehyde
• b) Urotropine
• c) Methyl alcohol
• d) Ammonia

Answer: Urotropine