College Chemistry MCQ (Multiple Choice Questions) PDF Download

In electroplating, the solution must be of the salt of the metal should be of

1. substance that has to electroplate
2. iodine
3. chlorine
4. sodium

Rare freezing of seawater can be explained through

1. lowering the freezing point of water
2. presence of impurities like salts
3. presence of breathing animals in it
4. elevation of the boiling point

Which of the following is correct about an ionic equation chemical reaction?

1. it symbolically represents all ions in the solution
2. the states of reactants and products are mentioned as transcripts
3. the aqueous elements are shown as the ions it produces in solution
4. none of above

The pH of the soil can be controlled through

1. acid rains
2. neutralization
3. hydrolases
4. reversible reactions

Water can be separated from seawater through

1. centrifugation
2. separating funnel
3. fractional distillation
4. simple distillation