Answer
Before Going To Solve This Problem let's know about what is Colloids
→ Colloids are heterogeneous mixture in which the size of particles are too small and can't be seen with naked eyes.
→ The particles of colloid can be pass through filter paper.
(1) Margarine
Ans:- Yes, margarine is colloids .
(6) Smoke
Ans:- Yes , Smog is colloids.
(2) Mayonnaise
Ans:- Yes, mayonnaise is colloids.
(7) Vinegar
Ans:- Yes, Vinegar is not colloids.
(3) Toothpaste
Ans:- Yes, Toothpaste is colloids.
(8) Cake
Ans:- Yes, Cake is Colloids
(4) Smoke
Ans:- Yes, Smoke is colloids.
(9) Soy sauce and Vinegar
Ans:- Yes, Soy sauce and Vinegar is colloids.
(5) Cough Syrup
Ans:- No, It is not colloids . It is suspension .
(5) Soft Drink
Ans:- No, it is not colloids .