Some Chemical Reactions MCQs with Answers

One-liner

CS₂ (carbon disulfide) is not a locating agent; it is a solvent used in chromatography and industrial processes.

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A mixture of camphor and benzoic acid can be separated by chemical method because both substances sublime on heating and cannot be separated by physical means alone.

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The energy released per mole of glucose during complete oxidation is approximately 2827 KJ, so 14135 KJ corresponds to 5 moles of glucose.

One-liner

Grignard's reagent reacts with CO₂ to form carboxylic acid.

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The unit of rate constant depends on the order of reaction because the rate equation's dimensions change with the sum of exponents in the rate law.

One-liner

Grignard reagent reacts with an aldehyde (except formaldehyde) to give a secondary alcohol.

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At high pH, carbon predominantly exists as CO₃²⁻ (carbonate ion).

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The numerical value of the equilibrium constant for any chemical change is affected by changing the temperature.

One-liner

Aldehydes and ketones undergo nucleophilic addition reactions due to the polar nature of the carbonyl group (C=O), where the carbon atom is electron-deficient and susceptible to nucleophilic attack.

One-liner

When the rate of reaction equals the rate constant, it represents a zero order reaction.