Question

FILL IN THE BLANKS:
1) Hydrogen Sulfide is an example of _________ where sulphur is an element.
2) In ________ the solid directly changes to gas.
3) When zinc carbonate is heated then ________ gas liberates.
4) Freeze drink is an example of ______ mixture.
5) The lack of ______ in our diet may cause the disease goitre.
6) The method use to separate oil and water is _________.
7) Ammonium Chloride can be __________.
8) The components of a mixture are present in _______ proportion.​

Answer 1

Explanation:

1 acid

2 sublimation

3 carbon dioxide

4 homogeneous

5 iodine

6 decantation or distillation

7

8 1:1