Question : Which of the following statements is not correct regarding hydrocarbons?
Option 1: Saturated hydrocarbons are unreactive and are inert in the presence of most reagents.
Option 2: Most carbon compounds also release the amount of heat and light on burning.
Option 3: Carbon compounds cannot get oxidised on combustion.
Option 4: Unsaturated hydrocarbons add hydrogen in the presence of catalysts such as palladium or nickel to give saturated hydrocarbons.
Correct Answer: Carbon compounds cannot get oxidised on combustion.
Solution : The correct answer is Carbon compounds cannot get oxidised on combustion.
Combustion causes the easy oxidation of carbon and its compounds. For instance, alcohol oxidises to form carboxylic acid. When oxygen is present, carbon compounds oxidise during a combustion event. Not every oxidation reaction is a combustion reaction, even though combustion is typically an oxidation reaction.
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Question : Which of the following are the main components of stainless steel?
Option 1: Iron and carbon
Option 2: Silver
Option 3: Iron, chromium and nickel
Option 4: Iron and nickel
Question : Ozone consists of which of the following?
Option 1: Oxygen only
Option 2: Oxygen and Nitrogen
Option 3: Hydrogen and Carbon
Option 4: Oxygen and Carbon
Question : Which of the following gases is used in a bulb?
Option 1: Hydrogen
Option 2: Carbon dioxide
Option 3: Carbon monoxide
Option 4: Argon
Question : Compounds with exactly two double carbon-carbon bonds are known as _____________.
Option 1: Terpenes
Option 2: Dienes
Option 3: Tri alkyne
Option 4: Di alkyne
Question : The colour of the plants is green due to the presence of:
Option 1: Urea
Option 3: Chlorophyll
Option 4: Oxygen
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