Tag: substances and mixtures

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Questions Related to substances and mixtures

Multiple choice chemistry separation of substances substances and mixtures formation of mixtures and types of mixtures based on states types of mixtures

Vinegar is a solution of acetic acid in water, it is:

  1. a homogeneous solid in liquid mixture

  2. a heterogeneous liquid in liquid mixture

  3. a homogeneous liquid in liquid mixture

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Vinegar is homogenous solution because it is a completely uniform solution of liquid in liquid type of mixture (acetic acid in water)
Multiple choice chemistry separation of substances substances and mixtures formation of mixtures and types of mixtures based on states types of mixtures

Unlike gases, can all liquids in liquid mixtures form solutions.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

No, not all liquids in liquids mixture form solutions

we know that "like dissolve like", so, the liquids which have same polarity only form solutions.
for example: water and oil have different polarity and hence they do not form solution.

Multiple choice chemistry separation of substances substances and mixtures formation of mixtures and types of mixtures based on states types of mixtures

Match the column I with column II and select the correct option from the codes given :


Column I                       Column II

P. Chalk-water mixture     (i) A gaseous mixture
Q. Glucose solution          (ii) A solid-gas mixture
R. Fizzy drink                    (iii) A homogeneous solid-liquid mixture
S. Smoke                          (iv) A solid-liquid mixture
T. Air                                 (v) A gas-liquid mixture

  1. P-(iii), Q-(iv), R-(v), S-(i), T-(ii)

  2. P- (v), Q- (iii), R- (iv), S- (ii), T-(i)

  3. P-(ii), Q-(i), R-(iv), S- (v), T- (iii)

  4. P-( iv), Q- (iii), R- (v), S-(ii), T-(i)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Chalk-water mixture- A heterogeneous solid-liquid mixture

Glucose solution- A homogeneous solid-liquid mixture

Fizzy drink- A gas-liquid mixture

Smoke - A solid-gas mixture

Air - A gaseous mixture

Hence the correct option is D.
Multiple choice chemistry separation of substances substances and mixtures formation of mixtures and types of mixtures based on states types of mixtures

Which pair is a miscible liquid mixture?

  1. Ethylalcohol and water

  2. Mercury and alcohol

  3. Benzene and water

  4. Carbondisulphide and water
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Water is polar and has hydrogen bonding. Since, ethyl alcohol has oxygen atom it also undergoes hydrogen bonding when mixed with water. Also, ethyl alcohol is polar due to high electro-negativity of $O$, due to which it mixes with water. Hence, ethyl alcohol and water are a pair of miscible liquid mixture.