Chemistry (General Concepts) MCQs with Answers

All of the following steps are used to calculate the lattice energy in Born-Haber cycle EXCEPT?

• A.Sublimation of the metal
• B.Dissociation of the non-metal
• C.Deionize the metal
• D.Electron affinity of the non-metal

What is one property of suspension that makes it different from a solution?

• A.Suspensions cannot be separated by filtration
• B.Suspensions are always colourless
• C.Suspensions form a single homogeneous phase
• D.Suspensions have suspended particles

Which of the following hydrocarbons gives acid–base reactions?

• A.Ethane
• B.Ethene
• C.1-Butyne
• D.Benzene

Which of the following floats on water to form sawdust and water mixture?

• A.Solid
• B.Liquid
• C.Gas
• D.Plasma

Analysis deals with the identification of presence of functional groups in compounds is _?

• A.Organic qualitative analysis
• B.Organic quantitative analysis
• C.Inorganic qualitative analysis
• D.Volumetric analysis

Which of the following molecules have similar molecular shape?

• A.H₂O & SnCl₂
• B.CO₂ & H₂O
• C.NH₃ & BF₃
• D.CH₄ & SF₆

The ionization constant of an acid is expressed in terms of which of the following constants?

• A.Ka
• B.Kb
• C.Kw
• D.Kp

Why is it essential to perform sample preparation steps carefully in analytical chemistry?

• A.To minimize the risk of contamination
• B.To increase the volume of the sample
• C.To speed up the analysis process
• D.To reduce the cost of reagents

Which of the following transitions is the highest energy transition?

• A.σ to σ*
• B.π to π*
• C.n to π*
• D.n to σ*

All of the following structures are proteinaceous in nature except?

• A.Enzymes
• B.Antibodies
• C.Steroids
• D.Collagen