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mcq on General Organic Chemistry for NEET Students
In which of the following molecules is the distance between two adjacent carbon atoms the greatest?
a) Benzene
b) Ethane
c) Ethene
d) Ethyne
Option b – Ethane
Which of the following is a saturated carbon compound?
a) Acetylene
b) Pentene
c) Butane
d) Benzene
Option c – Butane
Consider the following statements: I. Methane is also called marsh gas. II. The main component of natural gas is methane. III. The major constituent of gobar gas is methane. Which of the above statements are correct?
a) I and II
b) I and III
c) II and III
d) I, II and III
Option d – I, II and III
Which of the following is not an allotrope of carbon?
a) Graphite
b) Methane
c) Diamond
d) C-60 buckminsterfullerene
Option b – Methane
Which of the following carbon compounds does not produce a sooty flame on burning?
a) Benzene
b) Hexane
c) Naphthalene
d) Anthracene
Option b – Hexane
Study the statements below: I. Cooking gas cylinders contain a mixture of C₂H₈ and C₄H₁₀. II. The thermal breakdown of alkanes is called cracking. III. Paraffin wax contains saturated Hydrocarbons. Which of the above statements are correct?
a) I and II
b) I and III
c) II and III
d) I, II and III
Option d – I, II and III
Assertion (A): Hydrocarbons are excellent fuels. Reason (R): The major sources of Hydrocarbons are petroleum, coal, and natural gas.
a) Both A and R are true, and R correctly explains A
b) Both A and R are true, but R does not correctly explain A
c) A is true, but R is false
d) A is false, but R is true
Option b – Both A and R are true, but R does not correctly explain A
Assertion (A): The main constituent of LPG is methane. Reason (R): Methane can be directly used as a domestic and industrial fuel through pipelines.
a) Both A and R are true, and R correctly explains A
b) Both A and R are true, but R does not correctly explain A
c) A is true, but R is false
d) A is false, but R is true
Option d – A is false, but R is true
Excess consumption of ethyl Alcohol primarily damages which organ of the human body?
a) Kidney
b) Liver
c) Heart
d) Intestine
Option b – Liver
Which of the following chemical compounds is expected to serve as a fuel for vehicles in the near future?
a) Ethanol
b) Ethene
c) Ethylene
d) Ethane
Option a – Ethanol
Consider the following statements: I. Methane (CH₄) is the simplest hydrocarbon. II. Hydrocarbons form the Base of carbohydrates, proteins, and nucleic Acids that support life. III. Benzene is an unsaturated cyclic hydrocarbon. Which of the statements are correct?
a) I and II
b) I and III
c) II and III
d) I, II and III
Option d – I, II and III
Acidic hydrogen is present in which compound?
a) Ethyne
b) Ethene
c) Benzene
d) Ethane
Option a – Ethyne
Methane is a colourless, odourless, flammable, non-toxic gas. What is its common name?
a) Blue vitriol
b) Laughing gas
c) Heating gas
d) Marsh gas
Option d – Marsh gas
Which of the following contributes to methane emissions in the Atmosphere?
a) Automobile exhaust
b) Industrial chimneys
c) Mining
d) Wetlands
Option d – Wetlands
Which of the following represents the correct order of increasing Molecular weight of Hydrocarbons?
a) Methane, ethane, propane, and butane
b) Propane, butane, ethane, and methane
c) Butane, ethane, propane, and methane
d) Butane, propane, ethane, and methane
Option a – Methane, ethane, propane, and butane
During World War I, which gas was used as a chemical weapon?
a) Carbon monoxide
b) Hydrogen cyanide
c) Mustard gas
d) Burning vapour
Option c – Mustard gas
Which element is present in all Organic compounds?
a) Carbon
b) Calcium
c) Nitrogen
d) Oxygen
Option a – Carbon
A combination of carbon monoxide and hydrogen used in Organic synthesis is known as
a) Producer gas
b) Natural gas
c) Synthesis gas
d) Oil gas
Option c – Synthesis gas
The first Organic compound to be synthesized in a laboratory was
a) Urea
b) Methane
c) Ethylene
d) Acetic Acid
Option a – Urea
The major component of biogas is
a) Carbon dioxide
b) Methane
c) Hydrogen
d) Hydrogen sulphide
Option b – Methane
Which gas is released from a cigarette lighter?
a) Butane
b) Methane
c) Propane
d) Radon
Option b – Methane
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