Chemistry (General Concepts) MCQs with Answers

If the co-factor is a non-protein like a metallic ion, it is referred to as a ?

• A.Coenzyme
• B.Activator
• C.Prosthetic group
• D.Apoenzyme

Mouthwash is classified as which one of the following types of mixture?

• A.Homogeneous solution
• B.Heterogeneous mixture
• C.Colloidal solution
• D.Suspension

Solution is mixtures of ?

• A.Heterogeneous substances
• B.Homogeneous substances
• C.Insoluble substances
• D.Non-reactive substances

Which among the following is a positively charged particle emitted by a radioactive element?

• A.Alpha rays
• B.Beta rays
• C.Gamma rays
• D.X-rays

Alkyl Halides involving -C-X bond breakage and -C-Nu bond formation simultaneously would follow which one of the following mechanisms?

• A.SN1
• B.SN2
• C.E1
• D.E2

The carbohydrates which contain the aldehyde group are called?

• A.Ketoses
• B.Aldoses
• C.Disaccharides
• D.Polysaccharides

Light passes easily through a solution?

• A.Heterogeneous
• B.Colloidal
• C.Homogeneous
• D.Suspension

Which statement is incorrect about suspension?

• A.Particles of a suspension can be seen with the naked eye
• B.Particles of a suspension settle down when left undisturbed
• C.The suspension is transparent and clear
• D.Particles of a suspension scatter a beam of light passing through it

Which is the best leaving group?

• A.F⁻
• B.Cl⁻
• C.Br⁻
• D.I⁻

The octahedral complex having sp³d² hybridization is called as _ orbital complex.

• A.Inner
• B.Outer
• C.Middle
• D.Peripheral