Chemistry Quiz

Which of the following is correct about galvanic cell

• Rxns are spontaneous

• Ecell is negative

• rxn requires energy

• rxs are non-spontaneous

from the following one is not major component of electrolytic cell

• Electrods

• Electrolytes

• Connecting wire

• bulb

For a cell notation Mg(s) | Mg2+ (0.1M) || Cd2+(0.1M) | Cd(s), which one is correct?

• Cd(s) → Cd2+ +2e-

• Mg(s) → Mg2+ + 2e-

• Cd2+ +2e- → Cd(s)

• Mg2+ + 2e- → Mg(s)

The charge carriers in electrolytic conduction are:

• delocalized electrons

• anodes and cathodes

• connecting wires

• cations and anions

The principles of green chemistry include eliminating ________ treatments

• costly

• hard

• Harmful

• easy

Which of the following types of reaction has the greatest value of atom economy?

• addition

• substitution

• Elimination

• condensation

What is the classification of polymer based on monomer chain?

• natural, synthetic

• linear, branched, cross-linked

• homomer, co-polymer

• thermosetting, thermoplastic, elastomers

For the reaction SO₂ + O₂ ↔ SO₃ if the equilibrium shifts to the right, the concentration of SO₃ will----------------

What is the PH of 500ml of 0.1M CH₃COOH combined with 400mLof 0.2M CH3COOK after 20mL of 0.5MHCl is added to a buffer?