Chemistry (General Concepts) MCQs with Answers

In which state of matter, the particles have no regular pattern, have large empty spaces?

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

Which statement is incorrect about particles in solids?

• A.Particles are tightly packed together
• B.Particles have fixed positions and can only vibrate
• C.Particles are in loose clusters
• D.Particles have strong intermolecular forces

Which of the following unit cells has the highest symmetry?

• A.Cubic
• B.Tetragonal
• C.Orthorhombic
• D.Monoclinic

Past Paper MCQ

Anion is a charge?

• A.Positive
• B.Negative
• C.Neutral
• D.None of these

Which of the following generally have high carbon to hydrogen ratio?

• A.Alkanes
• B.Alkenes
• C.Alkynes
• D.All have equal ratio

Order of reaction is defined as _?

• A.Sum of the powers of concentration terms in the rate law equation
• B.Number of molecules participating in the reaction
• C.Molecularity of the slowest step
• D.Number of reactant species in the balanced equation

At STP (Standard Temperature and Pressure), 2 moles of any ideal gas occupy?

• A.22.4 L
• B.44.8 L
• C.11.2 L
• D.67.2 L

The compounds having all the electrons paired are called ?

• A.Paramagnetic
• B.Diamagnetic
• C.Ferromagnetic
• D.Ferrimagnetic

In electrolysis, reduction occurs at ?

• A.Anode
• B.Cathode
• C.Electrolyte
• D.Salt bridge

An oxidizing agent?

• A.Accepts electrons
• B.Donates electrons
• C.Loses protons
• D.Gains protons