EM 10th Science - Unit

JavaScript isn't enabled in your browser, so this file can't be opened. Enable and reload.

EM 10th Science - Unit - 9

For more information contact - +91 7397 774 508 or visit our website - https://waytosuccess.org/

Email *

Choose the correct answer

1. A solution is a __________ mixture

1 point

homogeneous

heterogeneous

homogeneous & heterogeneous

non homogeneous

Clear selection

2. The number of components in a binary solution is __________.

1 point

Clear selection

3. Which of the following is the universal solvent?

1 point

Acetone

Benzene

Water

Alcohol

Clear selection

4. A solution in which no more solute can be dissolved in a definite amount of solvent at a given temperature is called _______.

1 point

Saturated solution

Unsaturated solution

Super saturated solution

Dilute solution

Clear selection

5. Identify the non aqueous solution

1 point

sodium chloride in water

glucose in water

copper sulphate in water

sulphur in carbon-di-sulphide

Clear selection

6. When pressure is increased at constant temperature, the solubility of gases in liquid _______.

1 point

No change

increases

decreases

no reaction

Clear selection

7. Solubility of NaCl in 100 ml water is 36 g. If 25 g of salt is dissolved in 100 ml of water how much more salt is required for saturation ___________.

1 point

12g

11g

16g

20g

Clear selection

8. A 25% alcohol solution means

1 point

25 ml alcohol in 100 ml of water

25 ml alcohol in 25 ml of water

25 ml alcohol in 75 ml of water

75 ml alcohol in 25 ml of water

Clear selection

9. Deliquescence is due to _________.

1 point

Strong affinity to water

Less affinity to water

Strong hatred to water

Inertness to water

Clear selection

10. Which of the following is hygroscopic in nature?

1 point

ferric chloride

copper sulphate penta hydrate

silica gel

none of the above

Clear selection

Fill in the blanks.

1. The component present in lesser amount, in a solution is called ________

1 point

2. Example for liquid in solid type solution is _________

1 point

3. Solubility is the amount of solute dissolved in _____- of solvent

1 point

4. Polar compounds are soluble in ____solvents

1 point

5. Volume percentage decreases with increase in temperature because of __________

1 point

True or False

1. Solutions which contain three components are called binary solution

1 point

True

False

Clear selection

2. In a solution, the component which is present in lesser amount is called solvent.

1 point

True

False

Clear selection

3. Sodium chloride dissolved in water forms a non - aqueous solution

1 point

True

False

Clear selection

4. The molecular formula of green vitriol is MgSO4.7H2O

1 point

True

False

Clear selection

5. When Silica gel is kept open, it absorbs moisture from the air, because it is hygroscopic in nature

1 point

True

False

Clear selection

Match the following

Name *

Mobile Number *

District *

School Name *

A copy of your responses will be emailed to the address you provided.

Submit

Clear form

Never submit passwords through Google Forms.

Forms

reCAPTCHA

Privacy Terms

This content is neither created nor endorsed by Google.