Tag: introduction to solutions

Questions Related to introduction to solutions

A concentrated solution contains high amount of ________.

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

  1. solvent

  2. solute

  3. both solute and solvent

  4. none of these

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Correct Option: B
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.

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

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

  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

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Correct Option: A

Which of the following are true solutions?

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

  1. ENO salt in water

  2. Tomato soup

  3. Aam panna

  4. Filtered black tea

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Correct Option: A

If air is taken as a binary solution, the solvent is 

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

  1. ${N _2}$

  2. ${O _2}$

  3. $C{O _2}$

  4. ${H _2}$

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Correct Option: A

If air is taken as a binary solution, the solvent is:

chemistry is matter pure different types of solutions various mixtures introduction to solutions

  1. N$ _{ 2 }$

  2. O$ _{ 2 }$

  3. CO$ _{ 2 }$

  4. Ar

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Correct Option: A
Explanation:

(A) option is correct.

Explanation:
Air is mainly composed of oxygen and nitrogen gas. Around 78% is nitrogen gas and 21% is oxygen. Since the nitrogen content is more than oxygen so nitrogen will be the solvent and oxygen will be the solute if air is considered as binary solution.

In a glass we are having half filled water. Then we are continuously adding salt to the water and salt is getting dissolved into water. But a state occur when water is not able to dissolve salt. Then the solution is called as 

chemistry is matter pure different types of solutions various mixtures introduction to solutions

  1. Unsaturated solution

  2. Saturated solution

  3. Both A and B

  4. Super saturated solution

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Correct Option: B
Explanation:

A saturated solution is formed due to maximum concentration of a solute dissolved into solvent. The additional solute will not dissolve in a saturated solution.

What volume would you dilute 0.2 L of a 15 M solution to obtain a 3 M solution?

chemistry introduction to analytical chemistry different types of solutions various mixtures introduction to solutions

  1. 1L

  2. 225L

  3. 10L

  4. 0.4L

  5. 0.1L

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Correct Option: A
Explanation:
We know that :

$\displaystyle M _1V _1 = M _2V _2 $ 

Given :

$\displaystyle  M _1 = 15 $  M
$\displaystyle V _1 = 0.2 $ L
$\displaystyle  M _2 =3$  M
$\displaystyle  V _2 =$  ????

$\displaystyle  15 \times 0.2 = 3 V _2$
Thus, $\displaystyle  V _2 = 1$  L

Hence, the correct option is A.