Reaction Mechanism | MCQs

Explanation

• A Neutralization reaction is a specific type of reaction where an acid and a base react to form a salt and water only, with no other products.
• This reaction is characterized by the elimination of acidic and basic properties, resulting in a neutral solution.
• Example: HCl (acid) + NaOH (base) → NaCl (salt) + H2O (water)

Explanation

The products of combustion include:

hydrogen gas,

carbon dioxide,

water vapor,

heat and light.

Explanation

Oxidation is a chemical reaction involving the loss of electrons. 

Oxidation:

When a substance loses electrons during a chemical reaction, it is said to be oxidized. 

Reduction:

The opposite of oxidation is reduction, which is when a substance gains electrons. 

Explanation

Explanation

To induce fission in Uranium-238 (²³⁸U), you need Fast neutrons. 

Fast Neutrons:

Fast neutrons have sufficient kinetic energy to overcome the repulsive forces within the nucleus and initiate fission

Explanation

In a single displacement reaction, one element replaces another in a compound.

Here, C replaces B in the compound AB, forming A + BC.

Explanation

The SN1 reaction mechanism involves the formation of a carbocation intermediate, which is favored by the presence of a good leaving group and a stable carbocation.

None of the options listed (toluene, nitrobenzene, or benzoic acid) are typically associated with undergoing SN1 reactions 

Explanation

When an alcohol reacts with an alkyl magnesium halide (Grignard reagent), the product is an alkane.

The Grignard reagent acts as a strong base, removing the acidic hydrogen from the alcohol's hydroxyl group (-OH) and forming a new carbon-hydrogen (C-H) bond, thus creating an alkane.

The other product is a magnesium alkoxide salt. 

Explanation

The aromatization of n-heptane primarily yields toluene.

This process involves the dehydrogenation and cyclization of n-heptane, facilitated by catalysts like Cr2O3/Al2O3 at elevated temperatures, forming a benzene ring with a methyl substituent.

Explanation

Aldol condensation can occur between two aldehydes, two ketones, or an aldehyde and a ketone if they have at least one α-hydrogen.

The reaction forms a β-hydroxy compound, which often dehydrates to an α,β-unsaturated product.