Chemistry (General Concepts) MCQs with Answers

Which of the following statements is correct about Newland's Law?

• A.He classified elements into triads based on similar properties
• B.He arranged elements in order of increasing atomic number
• C.He discovered the relationship between atomic mass and atomic number
• D.He arranged all known elements in tabular form

Covalent bond was introduced by _?

• A.Lewis
• B.Dalton
• C.Rutherford
• D.Bohr

9.8 g of H₂SO₄ has been dissolved in excess water to ionize it completely. How many number of H⁺ ions will it yield?

• A.6.022 × 10²²
• B.1.204 × 10²³
• C.1.204 × 10²⁴
• D.6.022 × 10²³

What is the bond order for O₂²⁻?

• A.One and a half
• B.Two
• C.Three
• D.One

The unit of ionization potential is _?

• A.eV
• B.kJ/mol
• C.Both eV and kJ/mol
• D.Joule only

If the ratio of solute to solvent is low, the solution is said to be _?

• A.Concentrated
• B.Diluted
• C.Saturated
• D.Supersaturated

Oxygen molecule has Pi bond.

• A.1
• B.2
• C.3
• D.None of these

When a saturated solution is diluted, it changes into ?

• A.Colloidal solution
• B.Supersaturated solution
• C.Unsaturated solution
• D.Concentrated solution

Qc can be defined as _?

• A.Sum of molar concentrations of all species in the reaction
• B.Ratio of molar concentration of reactant and product raised to the power of coefficient
• C.Product of molar concentrations of reactants only
• D.Ratio of molar concentration of product and reactant raised to the power of coefficient

Molarity of pure water is ?

• A.18.0
• B.100.0
• C.55.6
• D.1.0