Chemistry (General Concepts) MCQs with Answers

Which of the following statement is not correct?

• A.Sigma bond is stronger than a pi bond
• B.Sigma bond is weaker than a pi bond
• C.Pi bond is formed by lateral overlap of orbitals
• D.Sigma bond allows free rotation of atoms

Which of the following remains suspended to form sand and water mixture?

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

Crystal lattice of substance can be categorized into _?

• A.Five types
• B.Six types
• C.Seven types
• D.Eight types

Among the following compounds, which is the most susceptible to nucleophilic attack on carbonyl carbon?

• A.CH₃COCl
• B.CH₃CONH₂
• C.CH₃COOCH₃
• D.CH₃COCH₃

The type of radiation that travels in a straight line across an electric field is a/an?

• A.α-particle
• B.β-particle
• C.γ-particle
• D.Neutron

For producing fission in 92U²³⁸, we need?

• A.Proton
• B.Electron
• C.Neutron
• D.Alpha particle

The complexes that contain less than three d-electrons are _?

• A.Stable
• B.Inert
• C.Labile
• D.Passive

Water is , meaning it is both an acid and a base.

• A.Amphoteric
• B.Amphibious
• C.Amorphous
• D.Anhydrous

Which one among the following pairs cannot be separated by H₂S in dilute HCl?

• A.Cu²⁺, Cd²⁺
• B.Bi³⁺, Sn⁴⁺
• C.As³⁺, Sb³⁺
• D.Hg²⁺, Pb²⁺

Racemic mixture in SN1 reaction is due to which empty orbital?

• A.Planar carbocation intermediate
• B.Tetrahedral carbanion intermediate
• C.Trigonal bipyramidal transition state
• D.Linear free radical intermediate