Tag: element, compound and mixture

Quizzes (17) Questions (4)

Questions Related to element, compound and mixture

Multiple choice chemistry element, compound and mixture different types of solutions various mixtures introduction to solutions

A concentrated solution contains high amount of ________.

  1. solvent

  2. solute

  3. both solute and solvent

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A concentrated solution contains the maximum amount of solute that can be dissolved because solubility depends on temperature, a solution that is concentrated at one temperature may not be concentrated at a higher temperature.

Multiple choice chemistry element, compound and mixture different types of solutions various mixtures introduction to solutions

Which of the following is used as antifreeze on cars for cooling the engine?

  1. $10\%$ (V/V) ethanol solution in water
  2. $35\%$ (V/V) ethanol solution in glycol
  3. $45\%$ (V/V) ethanol solution in glycol
  4. $20\%$ (V/V) ethanol solution in water
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ethanol-water mixtures are commonly used as antifreeze in cooling systems because they lower the freezing point of the coolant.

Multiple choice chemistry element, compound and mixture different types of solutions various mixtures introduction to solutions

Which of the following are true solutions?

  1. ENO salt in water

  2. Tomato soup

  3. Aam panna

  4. Filtered black tea
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A true solution is a homogeneous mixture where the solute particles are completely dissolved and invisible to the naked eye. ENO salt (effervescent salts) dissolved in water creates a true solution, whereas the others are colloids or suspensions.